8573634864 has 160 divisors (see below), whose sum is σ = 25202404800. Its totient is φ = 2824740864.

The previous prime is 8573634829. The next prime is 8573634893. The reversal of 8573634864 is 4684363758.

8573634864 is a `hidden beast` number, since 8 + 573 + 6 + 3 + 4 + 8 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 8573634864.

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 31 ways as a sum of consecutive naturals, for example, 3112912 + ... + 3115664.

It is an arithmetic number, because the mean of its divisors is an integer number (157515030).

Almost surely, 2^8573634864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8573634864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12601202400).

8573634864 is an abundant number, since it is smaller than the sum of its proper divisors (16628769936).

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

8573634864 is an equidigital number, since it uses as much as digits as its factorization.

8573634864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2871 (or 2847 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 54.

The square root of 8573634864 is about 92593.9245523161. The cubic root of 8573634864 is about 2046.7037937906.

The spelling of 8573634864 in words is "eight billion, five hundred seventy-three million, six hundred thirty-four thousand, eight hundred sixty-four".