I think it's time for a reality check about page length and word count.
I've quoted from two different sources. The first one works with 350 words per page:
"At about 350 per page, you would have 175,000 words in a 500 page book.
A 90,440 page book would equal about 258 pages.
However, the amount of words per page can vary quite a bit. With small type, a log more words. With a lot of dialogue, less words than straight text.
If you are writing with Word the is a word counting took. Just the Tools menu at the top then Word Count. If you want to count the words in a section, you can select it, then click on Word Count."
And this one, based upon 250 words per page:
"Word count: based on 25 lines per page in Courier New 12 pt. averages
approximately 250 words per page. 20 pages, an average chapter,
=25,000; 200 pages=50,000; 400 pages=100,000; 600 pages=150,000;
800=200,000 words. Most books are between 50 and 100,000 words long.
Publishers estimate by pages, including the white space. A computer
count of 50,000 words may be 65,000 in publishers' terms. If you use a
computer word count note it on the front of the ms."
A 500-page novel does not equate to 775,000 words. I suggest the poster meant 175,000 words.
A 775,000 word count would, using 300 words per page, equate to 2,583 pages.
I seriously doubt that the poster wrote a 2,583-page work, unless of course it was divided into numerous books, which is not mentioned or stated at all.
(Also, keep in mind, that a page count on Amazon is usually doubled. For example, an advertised book of 2,583 pages in length would show on Amazon to be about 5,166 pages.)
However, let me be the first to state that
I've been wrong before, and I could be wrong here.
One may also wish to visit this Wiki page on the "List of Longest Novels," located here:
http://en.wikipedia.org/wiki/List_of_longest_novels
Don