31137161008 has 10 divisors (see below), whose sum is σ = 60328249484. Its totient is φ = 15568580496.

The previous prime is 31137160997. The next prime is 31137161039. The reversal of 31137161008 is 80016173113.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 973036266 + ... + 973036297.

Almost surely, 2^31137161008 is an apocalyptic number.

It is an amenable number.

31137161008 is a deficient number, since it is larger than the sum of its proper divisors (29191088476).

31137161008 is a wasteful number, since it uses less digits than its factorization.

31137161008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1946072571 (or 1946072565 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 31.

The spelling of 31137161008 in words is "thirty-one billion, one hundred thirty-seven million, one hundred sixty-one thousand, eight".