31893876468 has 24 divisors (see below), whose sum is σ = 82687828160. Its totient is φ = 10631292120.

The previous prime is 31893876467. The next prime is 31893876479. The reversal of 31893876468 is 86467839813.

31893876468 is a `hidden beast` number, since 3 + 1 + 8 + 93 + 87 + 6 + 468 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31893876461) 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, 147656728 + ... + 147656943.

Almost surely, 2^31893876468 is an apocalyptic number.

It is an amenable number.

31893876468 is an abundant number, since it is smaller than the sum of its proper divisors (50793951692).

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

31893876468 is a wasteful number, since it uses less digits than its factorization.

31893876468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295313684 (or 295313676 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 63.

The spelling of 31893876468 in words is "thirty-one billion, eight hundred ninety-three million, eight hundred seventy-six thousand, four hundred sixty-eight".