68722589694 has 16 divisors (see below), whose sum is σ = 149940195840. Its totient is φ = 20825027160.

The previous prime is 68722589669. The next prime is 68722589713. The reversal of 68722589694 is 49698522786.

It is a Harshad number since it is a multiple of its sum of digits (66), and also a Moran number because the ratio is a prime number: 1041251359 = 68722589694 / (6 + 8 + 7 + 2 + 2 + 5 + 8 + 9 + 6 + 9 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520625614 + ... + 520625745.

It is an arithmetic number, because the mean of its divisors is an integer number (9371262240).

Almost surely, 2^68722589694 is an apocalyptic number.

68722589694 is an abundant number, since it is smaller than the sum of its proper divisors (81217606146).

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

68722589694 is a wasteful number, since it uses less digits than its factorization.

68722589694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041251375.

The product of its digits is 104509440, while the sum is 66.

The spelling of 68722589694 in words is "sixty-eight billion, seven hundred twenty-two million, five hundred eighty-nine thousand, six hundred ninety-four".