31612671608 has 32 divisors (see below), whose sum is σ = 68669412960. Its totient is φ = 13362693120.

The previous prime is 31612671593. The next prime is 31612671641. The reversal of 31612671608 is 80617621613.

It is a super-2 number, since 2×31612671608² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3862433 + ... + 3870608.

It is an arithmetic number, because the mean of its divisors is an integer number (2145919155).

Almost surely, 2^31612671608 is an apocalyptic number.

It is an amenable number.

31612671608 is an abundant number, since it is smaller than the sum of its proper divisors (37056741352).

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

31612671608 is a wasteful number, since it uses less digits than its factorization.

31612671608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7733127 (or 7733123 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 31612671608 in words is "thirty-one billion, six hundred twelve million, six hundred seventy-one thousand, six hundred eight".