68043385256 has 32 divisors (see below), whose sum is σ = 159062460480. Its totient is φ = 26510409600.

The previous prime is 68043385253. The next prime is 68043385261. The reversal of 68043385256 is 65258334086.

It is not an unprimeable number, because it can be changed into a prime (68043385253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55229405 + ... + 55230636.

It is an arithmetic number, because the mean of its divisors is an integer number (4970701890).

Almost surely, 2^68043385256 is an apocalyptic number.

It is an amenable number.

68043385256 is an abundant number, since it is smaller than the sum of its proper divisors (91019075224).

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

68043385256 is a wasteful number, since it uses less digits than its factorization.

68043385256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110460065 (or 110460061 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 50.

The spelling of 68043385256 in words is "sixty-eight billion, forty-three million, three hundred eighty-five thousand, two hundred fifty-six".