31079383664 has 40 divisors (see below), whose sum is σ = 70223109600. Its totient is φ = 13319733504.

The previous prime is 31079383661. The next prime is 31079383681. The reversal of 31079383664 is 46638397013.

It is a happy number.

It is a super-2 number, since 2×31079383664² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31079383661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2826089 + ... + 2837064.

It is an arithmetic number, because the mean of its divisors is an integer number (1755577740).

Almost surely, 2^31079383664 is an apocalyptic number.

It is an amenable number.

31079383664 is an abundant number, since it is smaller than the sum of its proper divisors (39143725936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31079383664 is an equidigital number, since it uses as much as digits as its factorization.

31079383664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5663182 (or 5663162 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 50.

The spelling of 31079383664 in words is "thirty-one billion, seventy-nine million, three hundred eighty-three thousand, six hundred sixty-four".