68588904968 has 8 divisors (see below), whose sum is σ = 128604196830. Its totient is φ = 34294452480.

The previous prime is 68588904949. The next prime is 68588904977. The reversal of 68588904968 is 86940988586.

68588904968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 68527721284 + 61183684 = 261778^2 + 7822^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4286806553 + ... + 4286806568.

Almost surely, 2^68588904968 is an apocalyptic number.

It is an amenable number.

68588904968 is a deficient number, since it is larger than the sum of its proper divisors (60015291862).

68588904968 is a wasteful number, since it uses less digits than its factorization.

68588904968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8573613127 (or 8573613123 counting only the distinct ones).

The product of its (nonzero) digits is 238878720, while the sum is 71.

The spelling of 68588904968 in words is "sixty-eight billion, five hundred eighty-eight million, nine hundred four thousand, nine hundred sixty-eight".