8564973536 has 24 divisors (see below), whose sum is σ = 19271190960. Its totient is φ = 3670702848.

The previous prime is 8564973523. The next prime is 8564973563. The reversal of 8564973536 is 6353794658.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19118021 + ... + 19118468.

It is an arithmetic number, because the mean of its divisors is an integer number (802966290).

Almost surely, 2^8564973536 is an apocalyptic number.

It is an amenable number.

8564973536 is an abundant number, since it is smaller than the sum of its proper divisors (10706217424).

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

8564973536 is a wasteful number, since it uses less digits than its factorization.

8564973536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38236506 (or 38236498 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 56.

The square root of 8564973536 is about 92547.1422357276. The cubic root of 8564973536 is about 2046.0143489204.

The spelling of 8564973536 in words is "eight billion, five hundred sixty-four million, nine hundred seventy-three thousand, five hundred thirty-six".