31347601772 has 6 divisors (see below), whose sum is σ = 54858303108. Its totient is φ = 15673800884.

The previous prime is 31347601759. The next prime is 31347601781. The reversal of 31347601772 is 27710674313.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3918450218 + ... + 3918450225.

It is an arithmetic number, because the mean of its divisors is an integer number (9143050518).

Almost surely, 2^31347601772 is an apocalyptic number.

It is an amenable number.

31347601772 is a deficient number, since it is larger than the sum of its proper divisors (23510701336).

31347601772 is a wasteful number, since it uses less digits than its factorization.

31347601772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7836900447 (or 7836900445 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 41.

The spelling of 31347601772 in words is "thirty-one billion, three hundred forty-seven million, six hundred one thousand, seven hundred seventy-two".