19407031692 has 12 divisors (see below), whose sum is σ = 45283073976. Its totient is φ = 6469010560.

The previous prime is 19407031669. The next prime is 19407031703. The reversal of 19407031692 is 29613070491.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

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, 808626309 + ... + 808626332.

It is an arithmetic number, because the mean of its divisors is an integer number (3773589498).

Almost surely, 2^19407031692 is an apocalyptic number.

19407031692 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19407031692 is an abundant number, since it is smaller than the sum of its proper divisors (25876042284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19407031692 is a wasteful number, since it uses less digits than its factorization.

19407031692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617252648 (or 1617252646 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The spelling of 19407031692 in words is "nineteen billion, four hundred seven million, thirty-one thousand, six hundred ninety-two".