31709062957 has 16 divisors (see below), whose sum is σ = 37281327552. Its totient is φ = 26588488320.

The previous prime is 31709062951. The next prime is 31709062961. The reversal of 31709062957 is 75926090713.

It is a cyclic number.

It is not a de Polignac number, because 31709062957 - 2⁷ = 31709062829 is a prime.

It is a super-2 number, since 2×31709062957² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31709062957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31709062951) by changing a digit.

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, 102073 + ... + 271729.

It is an arithmetic number, because the mean of its divisors is an integer number (2330082972).

Almost surely, 2^31709062957 is an apocalyptic number.

It is an amenable number.

31709062957 is a deficient number, since it is larger than the sum of its proper divisors (5572264595).

31709062957 is a wasteful number, since it uses less digits than its factorization.

31709062957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170988.

The product of its (nonzero) digits is 714420, while the sum is 49.

The spelling of 31709062957 in words is "thirty-one billion, seven hundred nine million, sixty-two thousand, nine hundred fifty-seven".