31606693248 has 64 divisors (see below), whose sum is σ = 90413391600. Its totient is φ = 9725134848.

The previous prime is 31606693241. The next prime is 31606693253. The reversal of 31606693248 is 84239660613.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 31606693197 and 31606693206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31606693241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3160743 + ... + 3170726.

Almost surely, 2^31606693248 is an apocalyptic number.

It is an amenable number.

31606693248 is an abundant number, since it is smaller than the sum of its proper divisors (58806698352).

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

31606693248 is a wasteful number, since it uses less digits than its factorization.

31606693248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6331499 (or 6331487 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 48.

The spelling of 31606693248 in words is "thirty-one billion, six hundred six million, six hundred ninety-three thousand, two hundred forty-eight".