8139696168 has 64 divisors (see below), whose sum is σ = 20985868800. Its totient is φ = 2629645760.

The previous prime is 8139696143. The next prime is 8139696181. The reversal of 8139696168 is 8616969318.

It is a happy number.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60055 + ... + 141017.

It is an arithmetic number, because the mean of its divisors is an integer number (327904200).

Almost surely, 2^8139696168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8139696168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10492934400).

8139696168 is an abundant number, since it is smaller than the sum of its proper divisors (12846172632).

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

8139696168 is a wasteful number, since it uses less digits than its factorization.

8139696168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81102 (or 81098 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 57.

The square root of 8139696168 is about 90220.2647302700. The cubic root of 8139696168 is about 2011.5742366464.

The spelling of 8139696168 in words is "eight billion, one hundred thirty-nine million, six hundred ninety-six thousand, one hundred sixty-eight".