68813566599868 has 48 divisors (see below), whose sum is σ = 125292419048160. Its totient is φ = 33029454931200.

The previous prime is 68813566599859. The next prime is 68813566600033. The reversal of 68813566599868 is 86899566531886.

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 15 ways as a sum of consecutive naturals, for example, 94602598 + ... + 95327218.

It is an arithmetic number, because the mean of its divisors is an integer number (2610258730170).

Almost surely, 2^{68813566599868} is an apocalyptic number.

It is an amenable number.

68813566599868 is a deficient number, since it is larger than the sum of its proper divisors (56478852448292).

68813566599868 is a wasteful number, since it uses less digits than its factorization.

68813566599868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729358 (or 729356 counting only the distinct ones).

The product of its digits is 32248627200, while the sum is 88.

The spelling of 68813566599868 in words is "sixty-eight trillion, eight hundred thirteen billion, five hundred sixty-six million, five hundred ninety-nine thousand, eight hundred sixty-eight".