31537034072 has 8 divisors (see below), whose sum is σ = 59131938900. Its totient is φ = 15768517032.

The previous prime is 31537034041. The next prime is 31537034083. The reversal of 31537034072 is 27043073513.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1971064622 + ... + 1971064637.

Almost surely, 2^31537034072 is an apocalyptic number.

It is an amenable number.

31537034072 is a deficient number, since it is larger than the sum of its proper divisors (27594904828).

31537034072 is a wasteful number, since it uses less digits than its factorization.

31537034072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3942129265 (or 3942129261 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 35.

The spelling of 31537034072 in words is "thirty-one billion, five hundred thirty-seven million, thirty-four thousand, seventy-two".