Wikipedia does not have many pages that are 750k words. According to Special:LongPages[1], the longest page right now is a little under 750k bytes.
https://en.wikipedia.org/wiki/List_of_chiropterans
Despite listing all presently known bats, the majority of "list of chiropterans" byte count is code that generates references to the IUCN Red List, not actual text. Most of Wikipedia's longest articles are code.