31854038968 has 32 divisors (see below), whose sum is σ = 62432472960. Its totient is φ = 15207809760.

The previous prime is 31854038947. The next prime is 31854038969. The reversal of 31854038968 is 86983045813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31854038969) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 46530 + ... + 256657.

It is an arithmetic number, because the mean of its divisors is an integer number (1951014780).

Almost surely, 2^31854038968 is an apocalyptic number.

It is an amenable number.

31854038968 is a deficient number, since it is larger than the sum of its proper divisors (30578433992).

31854038968 is a wasteful number, since it uses less digits than its factorization.

31854038968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303787 (or 303783 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 31854038968 in words is "thirty-one billion, eight hundred fifty-four million, thirty-eight thousand, nine hundred sixty-eight".