68938859808 has 192 divisors, whose sum is σ = 247473112320. Its totient is φ = 18181656576.

The previous prime is 68938859791. The next prime is 68938859863. The reversal of 68938859808 is 80895883986.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 359785 + ... + 517032.

It is an arithmetic number, because the mean of its divisors is an integer number (1288922460).

Almost surely, 2^68938859808 is an apocalyptic number.

It is an amenable number.

68938859808 is an abundant number, since it is smaller than the sum of its proper divisors (178534252512).

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

68938859808 is a wasteful number, since it uses less digits than its factorization.

68938859808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876856 (or 876842 counting only the distinct ones).

The product of its (nonzero) digits is 238878720, while the sum is 72.

The spelling of 68938859808 in words is "sixty-eight billion, nine hundred thirty-eight million, eight hundred fifty-nine thousand, eight hundred eight".