68256023859 has 24 divisors (see below), whose sum is σ = 104422640400. Its totient is φ = 42814560768.

The previous prime is 68256023821. The next prime is 68256023887. The reversal of 68256023859 is 95832065286.

68256023859 is a `hidden beast` number, since 6 + 8 + 2 + 560 + 23 + 8 + 59 = 666.

It is not a de Polignac number, because 68256023859 - 2¹² = 68256019763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68256023819) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 463024 + ... + 592370.

It is an arithmetic number, because the mean of its divisors is an integer number (4350943350).

Almost surely, 2^68256023859 is an apocalyptic number.

68256023859 is a deficient number, since it is larger than the sum of its proper divisors (36166616541).

68256023859 is a wasteful number, since it uses less digits than its factorization.

68256023859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132819 (or 132816 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 68256023859 in words is "sixty-eight billion, two hundred fifty-six million, twenty-three thousand, eight hundred fifty-nine".