31679297713 has 32 divisors (see below), whose sum is σ = 37287936000. Its totient is φ = 26356017600.

The previous prime is 31679297707. The next prime is 31679297729. The reversal of 31679297713 is 31779297613.

It is a cyclic number.

It is not a de Polignac number, because 31679297713 - 2²⁹ = 31142426801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31679297773) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10561788 + ... + 10564786.

It is an arithmetic number, because the mean of its divisors is an integer number (1165248000).

Almost surely, 2^31679297713 is an apocalyptic number.

It is an amenable number.

31679297713 is a deficient number, since it is larger than the sum of its proper divisors (5608638287).

31679297713 is a wasteful number, since it uses less digits than its factorization.

31679297713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397.

The product of its digits is 3000564, while the sum is 55.

It can be divided in two parts, 316792 and 97713, that added together give a triangular number (414505 = T₉₁₀).

The spelling of 31679297713 in words is "thirty-one billion, six hundred seventy-nine million, two hundred ninety-seven thousand, seven hundred thirteen".