68800056636 has 24 divisors (see below), whose sum is σ = 161018470144. Its totient is φ = 22864065840.

The previous prime is 68800056557. The next prime is 68800056649. The reversal of 68800056636 is 63665000886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8656660 + ... + 8664603.

Almost surely, 2^68800056636 is an apocalyptic number.

It is an amenable number.

68800056636 is an abundant number, since it is smaller than the sum of its proper divisors (92218413508).

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

68800056636 is a wasteful number, since it uses less digits than its factorization.

68800056636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17321601 (or 17321599 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 68800056636 in words is "sixty-eight billion, eight hundred million, fifty-six thousand, six hundred thirty-six".