general_fact: 86811 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
math_fact: 86811 is an unremarkable number.
trivia: 86811 is an uninteresting number.
historical_date: September 5th is the day in 1980 that the St. Gotthard Tunnel opens in Switzerland as the world's longest highway tunnel at 10.14 miles (16.224 km) stretching from Göschenen to Airolo.