31970065886 has 16 divisors (see below), whose sum is σ = 52691022720. Its totient is φ = 14427301080.

The previous prime is 31970065873. The next prime is 31970065961. The reversal of 31970065886 is 68856007913.

It is a happy number.

It is a super-2 number, since 2×31970065886² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5224226 + ... + 5230341.

It is an arithmetic number, because the mean of its divisors is an integer number (3293188920).

Almost surely, 2^31970065886 is an apocalyptic number.

31970065886 is a deficient number, since it is larger than the sum of its proper divisors (20720956834).

31970065886 is a wasteful number, since it uses less digits than its factorization.

31970065886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10454719.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 31970065886 in words is "thirty-one billion, nine hundred seventy million, sixty-five thousand, eight hundred eighty-six".