Fatto generale: 18477 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 18477 is a boring number.
Trivia: 18477 is an uninteresting number.
Data storica: August 2nd is the day in 1980 that a bomb explodes at the railway station in Bologna, Italy, killing 85 people and wounding more than 200.