Fatto generale: 26891 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 26891 is a boring number.
Trivia: 26891 is an uninteresting number.
Data storica: August 15th is the day in 1984 that the PKK in Turkey starts a campaign of armed attacks upon the Turkish military with an attack on police and gendarmerie bases in Şemdinli and Eruh.