28229589099 has 16 divisors (see below), whose sum is σ = 41921443200. Its totient is φ = 18774802728.

The previous prime is 28229589041. The next prime is 28229589163. The reversal of 28229589099 is 99098592282.

28229589099 is a `hidden beast` number, since 28 + 2 + 29 + 589 + 0 + 9 + 9 = 666.

It is not a de Polignac number, because 28229589099 - 2⁸ = 28229588843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28229589019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1236349 + ... + 1258974.

It is an arithmetic number, because the mean of its divisors is an integer number (2620090200).

Almost surely, 2^28229589099 is an apocalyptic number.

28229589099 is a deficient number, since it is larger than the sum of its proper divisors (13691854101).

28229589099 is a wasteful number, since it uses less digits than its factorization.

28229589099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495751 (or 2495745 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 63.

The spelling of 28229589099 in words is "twenty-eight billion, two hundred twenty-nine million, five hundred eighty-nine thousand, ninety-nine".