10688664931 has 6 divisors (see below), whose sum is σ = 12433753140. Its totient is φ = 9161712756.

The previous prime is 10688664923. The next prime is 10688664953. The reversal of 10688664931 is 13946688601.

It is not a de Polignac number, because 10688664931 - 2³ = 10688664923 is a prime.

It is a super-2 number, since 2×10688664931² (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 (10688664901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 109067961 + ... + 109068058.

It is an arithmetic number, because the mean of its divisors is an integer number (2072292190).

Almost surely, 2^10688664931 is an apocalyptic number.

10688664931 is a deficient number, since it is larger than the sum of its proper divisors (1745088209).

10688664931 is an equidigital number, since it uses as much as digits as its factorization.

10688664931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218136033 (or 218136026 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 10688664931 in words is "ten billion, six hundred eighty-eight million, six hundred sixty-four thousand, nine hundred thirty-one".