8572825728 has 64 divisors (see below), whose sum is σ = 25301752800. Its totient is φ = 2857607424.

The previous prime is 8572825721. The next prime is 8572825733. The reversal of 8572825728 is 8275282758.

It is a tau number, because it is divible by the number of its divisors (64).

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

It is not an unprimeable number, because it can be changed into a prime (8572825721) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1236826 + ... + 1243737.

Almost surely, 2^8572825728 is an apocalyptic number.

It is an amenable number.

8572825728 is an abundant number, since it is smaller than the sum of its proper divisors (16728927072).

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

8572825728 is a wasteful number, since it uses less digits than its factorization.

8572825728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2480586 (or 2480568 counting only the distinct ones).

The product of its digits is 5017600, while the sum is 54.

The square root of 8572825728 is about 92589.5551776765. Note that the first 3 decimals coincide. The cubic root of 8572825728 is about 2046.6394059377.

The spelling of 8572825728 in words is "eight billion, five hundred seventy-two million, eight hundred twenty-five thousand, seven hundred twenty-eight".