28576825633 has 4 divisors (see below), whose sum is σ = 28577445808. Its totient is φ = 28576205460.

The previous prime is 28576825619. The next prime is 28576825691. The reversal of 28576825633 is 33652867582.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28576825633 - 2¹³ = 28576817441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28576825603) 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 3 ways as a sum of consecutive naturals, for example, 234891 + ... + 335152.

It is an arithmetic number, because the mean of its divisors is an integer number (7144361452).

Almost surely, 2^28576825633 is an apocalyptic number.

It is an amenable number.

28576825633 is a deficient number, since it is larger than the sum of its proper divisors (620175).

28576825633 is an equidigital number, since it uses as much as digits as its factorization.

28576825633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620174.

The product of its digits is 14515200, while the sum is 55.

The spelling of 28576825633 in words is "twenty-eight billion, five hundred seventy-six million, eight hundred twenty-five thousand, six hundred thirty-three".