8120853648 has 60 divisors (see below), whose sum is σ = 22893058188. Its totient is φ = 2687185920.

The previous prime is 8120853599. The next prime is 8120853659. The reversal of 8120853648 is 8463580218.

8120853648 is a `hidden beast` number, since 81 + 208 + 5 + 364 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3598560144 + 4522293504 = 59988^2 + 67248^2 .

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, 186093 + ... + 225548.

Almost surely, 2^8120853648 is an apocalyptic number.

It is an amenable number.

8120853648 is an abundant number, since it is smaller than the sum of its proper divisors (14772204540).

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

8120853648 is a wasteful number, since it uses less digits than its factorization.

8120853648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411792 (or 411783 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 8120853648 is about 90115.7791288518. The cubic root of 8120853648 is about 2010.0208448124.

The spelling of 8120853648 in words is "eight billion, one hundred twenty million, eight hundred fifty-three thousand, six hundred forty-eight".