68855290684 has 24 divisors (see below), whose sum is σ = 123063449040. Its totient is φ = 33697407744.

The previous prime is 68855290681. The next prime is 68855290703. The reversal of 68855290684 is 48609255886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68855290681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298749 + ... + 476404.

It is an arithmetic number, because the mean of its divisors is an integer number (5127643710).

Almost surely, 2^68855290684 is an apocalyptic number.

It is an amenable number.

68855290684 is a deficient number, since it is larger than the sum of its proper divisors (54208158356).

68855290684 is a wasteful number, since it uses less digits than its factorization.

68855290684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775629 (or 775627 counting only the distinct ones).

The product of its (nonzero) digits is 33177600, while the sum is 61.

The spelling of 68855290684 in words is "sixty-eight billion, eight hundred fifty-five million, two hundred ninety thousand, six hundred eighty-four".