31947014944 has 96 divisors (see below), whose sum is σ = 68315063040. Its totient is φ = 14618880000.

The previous prime is 31947014923. The next prime is 31947014963. The reversal of 31947014944 is 44941074913.

It is a super-2 number, since 2×31947014944² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31947014894 and 31947014903.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28296172 + ... + 28297300.

It is an arithmetic number, because the mean of its divisors is an integer number (711615240).

Almost surely, 2^31947014944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31947014944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34157531520).

31947014944 is an abundant number, since it is smaller than the sum of its proper divisors (36368048096).

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

31947014944 is a wasteful number, since it uses less digits than its factorization.

31947014944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674 (or 1666 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 31947014944 in words is "thirty-one billion, nine hundred forty-seven million, fourteen thousand, nine hundred forty-four".