31431339976 has 16 divisors (see below), whose sum is σ = 58935792240. Its totient is φ = 15715128720.

The previous prime is 31431339917. The next prime is 31431340013. The reversal of 31431339976 is 67993313413.

It is a happy 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, 290931 + ... + 384061.

It is an arithmetic number, because the mean of its divisors is an integer number (3683487015).

Almost surely, 2^31431339976 is an apocalyptic number.

It is an amenable number.

31431339976 is a deficient number, since it is larger than the sum of its proper divisors (27504452264).

31431339976 is a wasteful number, since it uses less digits than its factorization.

31431339976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135324 (or 135320 counting only the distinct ones).

The product of its digits is 1102248, while the sum is 49.

The spelling of 31431339976 in words is "thirty-one billion, four hundred thirty-one million, three hundred thirty-nine thousand, nine hundred seventy-six".