31044738312 has 72 divisors (see below), whose sum is σ = 97806775950. Its totient is φ = 8869924224.

The previous prime is 31044738269. The next prime is 31044738323. The reversal of 31044738312 is 21383744013.

31044738312 is a `hidden beast` number, since 3 + 104 + 473 + 83 + 1 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 30424429476 + 620308836 = 174426^2 + 24906^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4396237 + ... + 4403292.

Almost surely, 2^31044738312 is an apocalyptic number.

It is an amenable number.

31044738312 is an abundant number, since it is smaller than the sum of its proper divisors (66762037638).

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

31044738312 is a wasteful number, since it uses less digits than its factorization.

31044738312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8799555 (or 8799541 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The spelling of 31044738312 in words is "thirty-one billion, forty-four million, seven hundred thirty-eight thousand, three hundred twelve".