Fait général: 13818 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 13818 is an unremarkable number.
Culture générale: 13818 is an uninteresting number.
Date historique: October 30th is the day in 1938 that Orson Welles broadcasts his radio play of H. G. Wells's The War of the Worlds, causing anxiety in some of the audience in the United States.