68168217676 has 12 divisors (see below), whose sum is σ = 128470871872. Its totient is φ = 31462254288.

The previous prime is 68168217661. The next prime is 68168217701. The reversal of 68168217676 is 67671286186.

It is a happy number.

It is a super-2 number, since 2×68168217676² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68168217676.

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, 655463580 + ... + 655463683.

Almost surely, 2^68168217676 is an apocalyptic number.

It is an amenable number.

68168217676 is a deficient number, since it is larger than the sum of its proper divisors (60302654196).

68168217676 is a wasteful number, since it uses less digits than its factorization.

68168217676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310927280 (or 1310927278 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 58.

The spelling of 68168217676 in words is "sixty-eight billion, one hundred sixty-eight million, two hundred seventeen thousand, six hundred seventy-six".