68675857686 has 24 divisors (see below), whose sum is σ = 149453196984. Its totient is φ = 22791105600.

The previous prime is 68675857673. The next prime is 68675857703.

68675857686 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8399715 + ... + 8407886.

It is an arithmetic number, because the mean of its divisors is an integer number (6227216541).

Almost surely, 2^68675857686 is an apocalyptic number.

68675857686 is an abundant number, since it is smaller than the sum of its proper divisors (80777339298).

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

68675857686 is a wasteful number, since it uses less digits than its factorization.

68675857686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16807836 (or 16807833 counting only the distinct ones).

The product of its digits is 812851200, while the sum is 72.

The spelling of 68675857686 in words is "sixty-eight billion, six hundred seventy-five million, eight hundred fifty-seven thousand, six hundred eighty-six".