31627164864 has 56 divisors (see below), whose sum is σ = 83693254000. Its totient is φ = 10540744704.

The previous prime is 31627164853. The next prime is 31627164869. The reversal of 31627164864 is 46846172613.

It is a super-2 number, since 2×31627164864² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (31627164869) 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, 2380512 + ... + 2393760.

Almost surely, 2^31627164864 is an apocalyptic number.

It is an amenable number.

31627164864 is an abundant number, since it is smaller than the sum of its proper divisors (52066089136).

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

31627164864 is a wasteful number, since it uses less digits than its factorization.

31627164864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25697 (or 25687 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 48.

The spelling of 31627164864 in words is "thirty-one billion, six hundred twenty-seven million, one hundred sixty-four thousand, eight hundred sixty-four".