28559799187 has 8 divisors (see below), whose sum is σ = 29053609200. Its totient is φ = 28066314144.

The previous prime is 28559799181. The next prime is 28559799197. The reversal of 28559799187 is 78199795582.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28559799187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28559799181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99489 + ... + 258877.

It is an arithmetic number, because the mean of its divisors is an integer number (3631701150).

Almost surely, 2^28559799187 is an apocalyptic number.

28559799187 is a deficient number, since it is larger than the sum of its proper divisors (493810013).

28559799187 is a wasteful number, since it uses less digits than its factorization.

28559799187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162485.

The product of its digits is 114307200, while the sum is 70.

The spelling of 28559799187 in words is "twenty-eight billion, five hundred fifty-nine million, seven hundred ninety-nine thousand, one hundred eighty-seven".