8139662700 has 144 divisors (see below), whose sum is σ = 26697457920. Its totient is φ = 1898138880.

The previous prime is 8139662677. The next prime is 8139662723. The reversal of 8139662700 is 72669318.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8139662677) and next prime (8139662723).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 19177 + ... + 129023.

Almost surely, 2^8139662700 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 8139662700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13348728960).

8139662700 is an abundant number, since it is smaller than the sum of its proper divisors (18557795220).

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

8139662700 is a wasteful number, since it uses less digits than its factorization.

8139662700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109896 (or 109889 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 8139662700 is about 90220.0792506857. The cubic root of 8139662700 is about 2011.5714796451.

The spelling of 8139662700 in words is "eight billion, one hundred thirty-nine million, six hundred sixty-two thousand, seven hundred".