8539820652 has 24 divisors (see below), whose sum is σ = 21737725632. Its totient is φ = 2587824400.

The previous prime is 8539820651. The next prime is 8539820687. The reversal of 8539820652 is 2560289358.

It is not an unprimeable number, because it can be changed into a prime (8539820651) 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 7 ways as a sum of consecutive naturals, for example, 32347674 + ... + 32347937.

It is an arithmetic number, because the mean of its divisors is an integer number (905738568).

Almost surely, 2^8539820652 is an apocalyptic number.

It is an amenable number.

8539820652 is an abundant number, since it is smaller than the sum of its proper divisors (13197904980).

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

8539820652 is a wasteful number, since it uses less digits than its factorization.

8539820652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64695629 (or 64695627 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 48.

The square root of 8539820652 is about 92411.1500415399. The cubic root of 8539820652 is about 2044.0095316158.

The spelling of 8539820652 in words is "eight billion, five hundred thirty-nine million, eight hundred twenty thousand, six hundred fifty-two".