31717471713 has 16 divisors (see below), whose sum is σ = 42425847360. Its totient is φ = 21077109824.

The previous prime is 31717471699. The next prime is 31717471729.

31717471713 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 31717471713 - 2⁴ = 31717471697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31717471763) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2014570 + ... + 2030252.

It is an arithmetic number, because the mean of its divisors is an integer number (2651615460).

Almost surely, 2^31717471713 is an apocalyptic number.

It is an amenable number.

31717471713 is a deficient number, since it is larger than the sum of its proper divisors (10708375647).

31717471713 is a wasteful number, since it uses less digits than its factorization.

31717471713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17808.

The product of its digits is 86436, while the sum is 42.

The spelling of 31717471713 in words is "thirty-one billion, seven hundred seventeen million, four hundred seventy-one thousand, seven hundred thirteen".