8539220128 has 48 divisors (see below), whose sum is σ = 16904807136. Its totient is φ = 4246007040.

The previous prime is 8539220119. The next prime is 8539220191. The reversal of 8539220128 is 8210229358.

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 7 ways as a sum of consecutive naturals, for example, 7603375 + ... + 7604497.

It is an arithmetic number, because the mean of its divisors is an integer number (352183482).

Almost surely, 2^8539220128 is an apocalyptic number.

It is an amenable number.

8539220128 is a deficient number, since it is larger than the sum of its proper divisors (8365587008).

8539220128 is a wasteful number, since it uses less digits than its factorization.

8539220128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2237 (or 2229 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 8539220128 is about 92407.9007877573. The cubic root of 8539220128 is about 2043.9616186052.

The spelling of 8539220128 in words is "eight billion, five hundred thirty-nine million, two hundred twenty thousand, one hundred twenty-eight".