31368415508 has 6 divisors (see below), whose sum is σ = 54894727146. Its totient is φ = 15684207752.

The previous prime is 31368415489. The next prime is 31368415531. The reversal of 31368415508 is 80551486313.

It can be written as a sum of positive squares in only one way, i.e., 25703143684 + 5665271824 = 160322^2 + 75268^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3921051935 + ... + 3921051942.

It is an arithmetic number, because the mean of its divisors is an integer number (9149121191).

Almost surely, 2^31368415508 is an apocalyptic number.

It is an amenable number.

31368415508 is a deficient number, since it is larger than the sum of its proper divisors (23526311638).

31368415508 is a wasteful number, since it uses less digits than its factorization.

31368415508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7842103881 (or 7842103879 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 31368415508 in words is "thirty-one billion, three hundred sixty-eight million, four hundred fifteen thousand, five hundred eight".