Fatto generale: 13868 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 13868 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 13868 is an unremarkable number.
Data storica: December 19th is the day in 1776 that Thomas Paine publishes one of a series of pamphlets in the Pennsylvania Journal titled The American Crisis.