18931929307160 has 32 divisors (see below), whose sum is σ = 42667017010560. Its totient is φ = 7560295977216.

The previous prime is 18931929307153. The next prime is 18931929307171. The reversal of 18931929307160 is 6170392913981.

It is a self number, because there is not a number n which added to its sum of digits gives 18931929307160.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389842469 + ... + 389891028.

It is an arithmetic number, because the mean of its divisors is an integer number (1333344281580).

Almost surely, 2^{18931929307160} is an apocalyptic number.

18931929307160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18931929307160 is an abundant number, since it is smaller than the sum of its proper divisors (23735087703400).

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

18931929307160 is a wasteful number, since it uses less digits than its factorization.

18931929307160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779734115 (or 779734111 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 59.

The spelling of 18931929307160 in words is "eighteen trillion, nine hundred thirty-one billion, nine hundred twenty-nine million, three hundred seven thousand, one hundred sixty".