31944602916 has 18 divisors (see below), whose sum is σ = 80748857462. Its totient is φ = 10648200960.

The previous prime is 31944602903. The next prime is 31944602923. The reversal of 31944602916 is 61920644913.

31944602916 is a `hidden beast` number, since 31 + 9 + 4 + 4 + 602 + 9 + 1 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 31595062500 + 349540416 = 177750^2 + 18696^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 443675005 + ... + 443675076.

Almost surely, 2^31944602916 is an apocalyptic number.

31944602916 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

31944602916 is an abundant number, since it is smaller than the sum of its proper divisors (48804254546).

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

31944602916 is a wasteful number, since it uses less digits than its factorization.

31944602916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887350091 (or 887350086 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 31944602916 in words is "thirty-one billion, nine hundred forty-four million, six hundred two thousand, nine hundred sixteen".