68004640086 has 16 divisors (see below), whose sum is σ = 141922727424. Its totient is φ = 21682638824.

The previous prime is 68004640061. The next prime is 68004640087.

68004640086 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68004640087) 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, 246393486 + ... + 246393761.

It is an arithmetic number, because the mean of its divisors is an integer number (8870170464).

Almost surely, 2^68004640086 is an apocalyptic number.

68004640086 is an abundant number, since it is smaller than the sum of its proper divisors (73918087338).

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

68004640086 is a wasteful number, since it uses less digits than its factorization.

68004640086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492787275.

The product of its (nonzero) digits is 221184, while the sum is 42.

The spelling of 68004640086 in words is "sixty-eight billion, four million, six hundred forty thousand, eighty-six".