8139617120 has 24 divisors (see below), whose sum is σ = 19229845824. Its totient is φ = 3255846784.

The previous prime is 8139617117. The next prime is 8139617179. The reversal of 8139617120 is 217169318.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25436144 + ... + 25436463.

It is an arithmetic number, because the mean of its divisors is an integer number (801243576).

Almost surely, 2^8139617120 is an apocalyptic number.

8139617120 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8139617120 is an abundant number, since it is smaller than the sum of its proper divisors (11090228704).

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

8139617120 is a wasteful number, since it uses less digits than its factorization.

8139617120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50872622 (or 50872614 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 8139617120 is about 90219.8266458100. The cubic root of 8139617120 is about 2011.5677248786.

The spelling of 8139617120 in words is "eight billion, one hundred thirty-nine million, six hundred seventeen thousand, one hundred twenty".