68352386931 has 48 divisors (see below), whose sum is σ = 110522599200. Its totient is φ = 40452701184.

The previous prime is 68352386923. The next prime is 68352386981. The reversal of 68352386931 is 13968325386.

It is a happy number.

68352386931 is a `hidden beast` number, since 6 + 8 + 3 + 523 + 86 + 9 + 31 = 666.

It is not a de Polignac number, because 68352386931 - 2³ = 68352386923 is a prime.

It is a super-2 number, since 2×68352386931² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68352386981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 614365 + ... + 717041.

It is an arithmetic number, because the mean of its divisors is an integer number (2302554150).

Almost surely, 2^68352386931 is an apocalyptic number.

68352386931 is a deficient number, since it is larger than the sum of its proper divisors (42170212269).

68352386931 is a wasteful number, since it uses less digits than its factorization.

68352386931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102948 (or 102945 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 54.

The spelling of 68352386931 in words is "sixty-eight billion, three hundred fifty-two million, three hundred eighty-six thousand, nine hundred thirty-one".