Fait général: 6363 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 6363 is an unremarkable number.
Culture générale: 6363 is an uninteresting number.
Date historique: June 2nd is the day in 1979 that Pope John Paul II first official visit to his native Poland, becoming the first Pope to visit a Communist country.