28558285107 has 32 divisors (see below), whose sum is σ = 41853196800. Its totient is φ = 17177472000.

The previous prime is 28558285073. The next prime is 28558285111. The reversal of 28558285107 is 70158285582.

It is not a de Polignac number, because 28558285107 - 2⁶ = 28558285043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28558285107.

It is not an unprimeable number, because it can be changed into a prime (28558285307) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10230882 + ... + 10233672.

It is an arithmetic number, because the mean of its divisors is an integer number (1307912400).

Almost surely, 2^28558285107 is an apocalyptic number.

28558285107 is a deficient number, since it is larger than the sum of its proper divisors (13294911693).

28558285107 is a wasteful number, since it uses less digits than its factorization.

28558285107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5035.

The product of its (nonzero) digits is 1792000, while the sum is 51.

The spelling of 28558285107 in words is "twenty-eight billion, five hundred fifty-eight million, two hundred eighty-five thousand, one hundred seven".