9659713931 has 12 divisors (see below), whose sum is σ = 11238660360. Its totient is φ = 8278391520.

The previous prime is 9659713901. The next prime is 9659713933. The reversal of 9659713931 is 1393179569.

It is not a de Polignac number, because 9659713931 - 2¹⁸ = 9659451787 is a prime.

It is a super-2 number, since 2×9659713931² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9659713933) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 384176 + ... + 408546.

It is an arithmetic number, because the mean of its divisors is an integer number (936555030).

Almost surely, 2^9659713931 is an apocalyptic number.

9659713931 is a deficient number, since it is larger than the sum of its proper divisors (1578946429).

9659713931 is a wasteful number, since it uses less digits than its factorization.

9659713931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32474 (or 32467 counting only the distinct ones).

The product of its digits is 1377810, while the sum is 53.

The square root of 9659713931 is about 98283.8436926436. The cubic root of 9659713931 is about 2129.7146664595.

The spelling of 9659713931 in words is "nine billion, six hundred fifty-nine million, seven hundred thirteen thousand, nine hundred thirty-one".