Fatto generale: 6761 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 6761 is an uninteresting number.
Trivia: 6761 is an unremarkable number.
Data storica: July 5th is the day in 1833 that Admiral Charles Napier defeats the navy of the Portuguese usurper Dom Miguel at the third Battle of Cape St. Vincent.