1919092001091 has 24 divisors (see below), whose sum is σ = 2620042995600. Its totient is φ = 1249468125696.

The previous prime is 1919092001081. The next prime is 1919092001119. The reversal of 1919092001091 is 1901002909191.

It is not a de Polignac number, because 1919092001091 - 2¹⁷ = 1919091870019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1919092001081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49065855 + ... + 49104951.

It is an arithmetic number, because the mean of its divisors is an integer number (109168458150).

Almost surely, 2^{1919092001091} is an apocalyptic number.

1919092001091 is a deficient number, since it is larger than the sum of its proper divisors (700950994509).

1919092001091 is an equidigital number, since it uses as much as digits as its factorization.

1919092001091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48035 (or 47992 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 42.

The spelling of 1919092001091 in words is "one trillion, nine hundred nineteen billion, ninety-two million, one thousand, ninety-one".