77753718028056 has 64 divisors (see below), whose sum is σ = 222166268352000. Its totient is φ = 22214069180928.

The previous prime is 77753718028033. The next prime is 77753718028061. The reversal of 77753718028056 is 65082081735777.

It is a congruent number.

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, 10392081 + ... + 16232768.

It is an arithmetic number, because the mean of its divisors is an integer number (3471347943000).

Almost surely, 2^{77753718028056} is an apocalyptic number.

It is an amenable number.

77753718028056 is an abundant number, since it is smaller than the sum of its proper divisors (144412550323944).

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

77753718028056 is a wasteful number, since it uses less digits than its factorization.

77753718028056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26642248 (or 26642244 counting only the distinct ones).

The product of its (nonzero) digits is 138297600, while the sum is 66.

The spelling of 77753718028056 in words is "seventy-seven trillion, seven hundred fifty-three billion, seven hundred eighteen million, twenty-eight thousand, fifty-six".