31969740972 has 48 divisors (see below), whose sum is σ = 80397630432. Its totient is φ = 9829079040.

The previous prime is 31969740919. The next prime is 31969740991. The reversal of 31969740972 is 27904796913.

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 15 ways as a sum of consecutive naturals, for example, 118972 + ... + 279452.

It is an arithmetic number, because the mean of its divisors is an integer number (1674950634).

Almost surely, 2^31969740972 is an apocalyptic number.

It is an amenable number.

31969740972 is an abundant number, since it is smaller than the sum of its proper divisors (48427889460).

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

31969740972 is a wasteful number, since it uses less digits than its factorization.

31969740972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161778 (or 161776 counting only the distinct ones).

The product of its (nonzero) digits is 5143824, while the sum is 57.

The spelling of 31969740972 in words is "thirty-one billion, nine hundred sixty-nine million, seven hundred forty thousand, nine hundred seventy-two".