68813119404656 has 20 divisors (see below), whose sum is σ = 145445911469304. Its totient is φ = 31278690638400.

The previous prime is 68813119404593. The next prime is 68813119404793. The reversal of 68813119404656 is 65640491131886.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195491816315 + ... + 195491816666.

Almost surely, 2^{68813119404656} is an apocalyptic number.

It is an amenable number.

68813119404656 is an abundant number, since it is smaller than the sum of its proper divisors (76632792064648).

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

68813119404656 is a wasteful number, since it uses less digits than its factorization.

68813119404656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390983633000 (or 390983632994 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 62.

The spelling of 68813119404656 in words is "sixty-eight trillion, eight hundred thirteen billion, one hundred nineteen million, four hundred four thousand, six hundred fifty-six".