68390483904 has 84 divisors (see below), whose sum is σ = 197970023160. Its totient is φ = 22571097600.

The previous prime is 68390483899. The next prime is 68390483911. The reversal of 68390483904 is 40938409386.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 529614 + ... + 645965.

It is an arithmetic number, because the mean of its divisors is an integer number (2356785990).

Almost surely, 2^68390483904 is an apocalyptic number.

68390483904 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

68390483904 is an abundant number, since it is smaller than the sum of its proper divisors (129579539256).

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

68390483904 is a wasteful number, since it uses less digits than its factorization.

68390483904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1175698 (or 1175685 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 68390483904 in words is "sixty-eight billion, three hundred ninety million, four hundred eighty-three thousand, nine hundred four".