68931328734 has 48 divisors (see below), whose sum is σ = 152350303248. Its totient is φ = 22519195776.

The previous prime is 68931328729. The next prime is 68931328757. The reversal of 68931328734 is 43782313986.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92514 + ... + 382650.

It is an arithmetic number, because the mean of its divisors is an integer number (3173964651).

Almost surely, 2^68931328734 is an apocalyptic number.

68931328734 is an abundant number, since it is smaller than the sum of its proper divisors (83418974514).

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

68931328734 is a wasteful number, since it uses less digits than its factorization.

68931328734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290409 (or 290406 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The spelling of 68931328734 in words is "sixty-eight billion, nine hundred thirty-one million, three hundred twenty-eight thousand, seven hundred thirty-four".