68818368404 has 12 divisors (see below), whose sum is σ = 120719575200. Its totient is φ = 34327061208.

The previous prime is 68818368383. The next prime is 68818368419. The reversal of 68818368404 is 40486381886.

It is a self number, because there is not a number n which added to its sum of digits gives 68818368404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20528864 + ... + 20532215.

It is an arithmetic number, because the mean of its divisors is an integer number (10059964600).

Almost surely, 2^68818368404 is an apocalyptic number.

It is an amenable number.

68818368404 is a deficient number, since it is larger than the sum of its proper divisors (51901206796).

68818368404 is a wasteful number, since it uses less digits than its factorization.

68818368404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41061502 (or 41061500 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 56.

The spelling of 68818368404 in words is "sixty-eight billion, eight hundred eighteen million, three hundred sixty-eight thousand, four hundred four".