Fait général: 7718 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 7718 is an unremarkable number.
Culture générale: 7718 is an uninteresting number.
Date historique: February 16th is the day in 116 that Emperor Trajan sends laureatae to the Roman Senate at Rome on account of his victories and being conqueror of Parthia.