68676066856 has 16 divisors (see below), whose sum is σ = 128823963840. Its totient is φ = 34323009840.

The previous prime is 68676066839. The next prime is 68676066869. The reversal of 68676066856 is 65866067686.

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, 1858510 + ... + 1895101.

It is an arithmetic number, because the mean of its divisors is an integer number (8051497740).

Almost surely, 2^68676066856 is an apocalyptic number.

It is an amenable number.

68676066856 is a deficient number, since it is larger than the sum of its proper divisors (60147896984).

68676066856 is a wasteful number, since it uses less digits than its factorization.

68676066856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755904 (or 3755900 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 64.

The spelling of 68676066856 in words is "sixty-eight billion, six hundred seventy-six million, sixty-six thousand, eight hundred fifty-six".