31943562116 has 6 divisors (see below), whose sum is σ = 55901233710. Its totient is φ = 15971781056.

The previous prime is 31943562067. The next prime is 31943562143. The reversal of 31943562116 is 61126534913.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 28644208516 + 3299353600 = 169246^2 + 57440^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3992945261 + ... + 3992945268.

It is an arithmetic number, because the mean of its divisors is an integer number (9316872285).

Almost surely, 2^31943562116 is an apocalyptic number.

It is an amenable number.

31943562116 is a deficient number, since it is larger than the sum of its proper divisors (23957671594).

31943562116 is a wasteful number, since it uses less digits than its factorization.

31943562116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7985890533 (or 7985890531 counting only the distinct ones).

The product of its digits is 116640, while the sum is 41.

The spelling of 31943562116 in words is "thirty-one billion, nine hundred forty-three million, five hundred sixty-two thousand, one hundred sixteen".