Fait mathématique: 63669 is an uninteresting number.
Culture générale: 63669 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Date historique: April 26th is the day in 1989 that the deadliest tornado in world history strikes Central Bangladesh, killing upwards of 1,300, injuring 12,000, and leaving as many as 80,000 homeless.