68169834278 has 16 divisors (see below), whose sum is σ = 125852002080. Its totient is φ = 26968286016.

The previous prime is 68169834263. The next prime is 68169834283. The reversal of 68169834278 is 87243896186.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 68169834278.

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, 187279583 + ... + 187279946.

It is an arithmetic number, because the mean of its divisors is an integer number (7865750130).

Almost surely, 2^68169834278 is an apocalyptic number.

68169834278 is a deficient number, since it is larger than the sum of its proper divisors (57682167802).

68169834278 is a wasteful number, since it uses less digits than its factorization.

68169834278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374559551.

The product of its digits is 27869184, while the sum is 62.

The spelling of 68169834278 in words is "sixty-eight billion, one hundred sixty-nine million, eight hundred thirty-four thousand, two hundred seventy-eight".