8139525900 has 288 divisors, whose sum is σ = 27681561600. Its totient is φ = 1825286400.

The previous prime is 8139525851. The next prime is 8139525907. The reversal of 8139525900 is 95259318.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (8139525907) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 2694591 + ... + 2697609.

Almost surely, 2^8139525900 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 8139525900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13840780800).

8139525900 is an abundant number, since it is smaller than the sum of its proper divisors (19542035700).

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

8139525900 is a wasteful number, since it uses less digits than its factorization.

8139525900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3109 (or 3102 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 42.

The square root of 8139525900 is about 90219.3211014137. The cubic root of 8139525900 is about 2011.5602103608.

The spelling of 8139525900 in words is "eight billion, one hundred thirty-nine million, five hundred twenty-five thousand, nine hundred".