19105669892 has 12 divisors (see below), whose sum is σ = 34513468416. Its totient is φ = 9244678920.

The previous prime is 19105669853. The next prime is 19105669901. The reversal of 19105669892 is 29896650191.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77038868 + ... + 77039115.

It is an arithmetic number, because the mean of its divisors is an integer number (2876122368).

Almost surely, 2^19105669892 is an apocalyptic number.

It is an amenable number.

19105669892 is a deficient number, since it is larger than the sum of its proper divisors (15407798524).

19105669892 is a wasteful number, since it uses less digits than its factorization.

19105669892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154078018 (or 154078016 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 56.

The spelling of 19105669892 in words is "nineteen billion, one hundred five million, six hundred sixty-nine thousand, eight hundred ninety-two".