31138800164328 has 32 divisors (see below), whose sum is σ = 77976529565760. Its totient is φ = 10362329500800.

The previous prime is 31138800164327. The next prime is 31138800164369. The reversal of 31138800164328 is 82346100883113.

It is not an unprimeable number, because it can be changed into a prime (31138800164327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1079394900 + ... + 1079423747.

It is an arithmetic number, because the mean of its divisors is an integer number (2436766548930).

Almost surely, 2^{31138800164328} is an apocalyptic number.

It is an amenable number.

31138800164328 is an abundant number, since it is smaller than the sum of its proper divisors (46837729401432).

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

31138800164328 is a wasteful number, since it uses less digits than its factorization.

31138800164328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2158819257 (or 2158819253 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The spelling of 31138800164328 in words is "thirty-one trillion, one hundred thirty-eight billion, eight hundred million, one hundred sixty-four thousand, three hundred twenty-eight".