68256890112 has 72 divisors (see below), whose sum is σ = 181701412704. Its totient is φ = 22747469824.

The previous prime is 68256890087. The next prime is 68256890123. The reversal of 68256890112 is 21109865286.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7155298 + ... + 7164830.

It is an arithmetic number, because the mean of its divisors is an integer number (2523630732).

Almost surely, 2^68256890112 is an apocalyptic number.

It is an amenable number.

68256890112 is an abundant number, since it is smaller than the sum of its proper divisors (113444522592).

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

68256890112 is an equidigital number, since it uses as much as digits as its factorization.

68256890112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18875 (or 18861 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 48.

The spelling of 68256890112 in words is "sixty-eight billion, two hundred fifty-six million, eight hundred ninety thousand, one hundred twelve".