31699240492 has 18 divisors (see below), whose sum is σ = 55796392148. Its totient is φ = 15757944432.

The previous prime is 31699240471. The next prime is 31699240523. The reversal of 31699240492 is 29404299613.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12678 + ... + 252109.

Almost surely, 2^31699240492 is an apocalyptic number.

It is an amenable number.

31699240492 is a deficient number, since it is larger than the sum of its proper divisors (24097151656).

31699240492 is a wasteful number, since it uses less digits than its factorization.

31699240492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265137 (or 264962 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 49.

The spelling of 31699240492 in words is "thirty-one billion, six hundred ninety-nine million, two hundred forty thousand, four hundred ninety-two".