31949077108 has 12 divisors (see below), whose sum is σ = 60211722340. Its totient is φ = 14745727872.

The previous prime is 31949077093. The next prime is 31949077117. The reversal of 31949077108 is 80177094913.

It can be written as a sum of positive squares in 2 ways, for example, as 4648785124 + 27300291984 = 68182^2 + 165228^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307202613 + ... + 307202716.

Almost surely, 2^31949077108 is an apocalyptic number.

It is an amenable number.

31949077108 is a deficient number, since it is larger than the sum of its proper divisors (28262645232).

31949077108 is a wasteful number, since it uses less digits than its factorization.

31949077108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614405346 (or 614405344 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 49.

The spelling of 31949077108 in words is "thirty-one billion, nine hundred forty-nine million, seventy-seven thousand, one hundred eight".