Fait général: 18877 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 18877 is an unremarkable number.
Culture générale: 18877 is an uninteresting number.
Date historique: September 6th is the day in 1991 that the name Saint Petersburg is restored to Russia's second largest city, which had been renamed Leningrad in 1924.