28222544585 has 8 divisors (see below), whose sum is σ = 33867974400. Its totient is φ = 22577421744.

The previous prime is 28222544579. The next prime is 28222544639. The reversal of 28222544585 is 58544522282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28222544585 - 2²⁸ = 27954109129 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 259304 + ... + 351686.

It is an arithmetic number, because the mean of its divisors is an integer number (4233496800).

Almost surely, 2^28222544585 is an apocalyptic number.

It is an amenable number.

28222544585 is a deficient number, since it is larger than the sum of its proper divisors (5645429815).

28222544585 is an equidigital number, since it uses as much as digits as its factorization.

28222544585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153487.

The product of its digits is 2048000, while the sum is 47.

The spelling of 28222544585 in words is "twenty-eight billion, two hundred twenty-two million, five hundred forty-four thousand, five hundred eighty-five".