68818812875 has 16 divisors (see below), whose sum is σ = 86069861280. Its totient is φ = 54937112800.

The previous prime is 68818812857. The next prime is 68818812893. The reversal of 68818812875 is 57821881886.

It is an interprime number because it is at equal distance from previous prime (68818812857) and next prime (68818812893).

It is a de Polignac number, because none of the positive numbers 2^k-68818812875 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 531080 + ... + 647829.

It is an arithmetic number, because the mean of its divisors is an integer number (5379366330).

Almost surely, 2^68818812875 is an apocalyptic number.

68818812875 is a deficient number, since it is larger than the sum of its proper divisors (17251048405).

68818812875 is a wasteful number, since it uses less digits than its factorization.

68818812875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179391 (or 1179381 counting only the distinct ones).

The product of its digits is 13762560, while the sum is 62.

The spelling of 68818812875 in words is "sixty-eight billion, eight hundred eighteen million, eight hundred twelve thousand, eight hundred seventy-five".