31765038368 has 48 divisors (see below), whose sum is σ = 71909893440. Its totient is φ = 13530053376.

The previous prime is 31765038341. The next prime is 31765038419. The reversal of 31765038368 is 86383056713.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398483 + ... + 471506.

It is an arithmetic number, because the mean of its divisors is an integer number (1498122780).

Almost surely, 2^31765038368 is an apocalyptic number.

It is an amenable number.

31765038368 is an abundant number, since it is smaller than the sum of its proper divisors (40144855072).

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

31765038368 is a wasteful number, since it uses less digits than its factorization.

31765038368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870169 (or 870161 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 31765038368 in words is "thirty-one billion, seven hundred sixty-five million, thirty-eight thousand, three hundred sixty-eight".