8139913800 has 48 divisors (see below), whose sum is σ = 25233734640. Its totient is φ = 2170643520.

The previous prime is 8139913799. The next prime is 8139913829. The reversal of 8139913800 is 83199318.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6782662 + ... + 6783861.

It is an arithmetic number, because the mean of its divisors is an integer number (525702805).

Almost surely, 2^8139913800 is an apocalyptic number.

It is an amenable number.

8139913800 is an abundant number, since it is smaller than the sum of its proper divisors (17093820840).

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

8139913800 is a wasteful number, since it uses less digits than its factorization.

8139913800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13566542 (or 13566533 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 8139913800 is about 90221.4708370463. The cubic root of 8139913800 is about 2011.5921643845.

The spelling of 8139913800 in words is "eight billion, one hundred thirty-nine million, nine hundred thirteen thousand, eight hundred".