28559799185 has 8 divisors (see below), whose sum is σ = 34297750080. Its totient is φ = 22830511984.

The previous prime is 28559799181. The next prime is 28559799197. The reversal of 28559799185 is 58199795582.

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 28559799185 - 2² = 28559799181 is a prime.

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

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2158667 + ... + 2171856.

It is an arithmetic number, because the mean of its divisors is an integer number (4287218760).

Almost surely, 2^28559799185 is an apocalyptic number.

It is an amenable number.

28559799185 is a deficient number, since it is larger than the sum of its proper divisors (5737950895).

28559799185 is a wasteful number, since it uses less digits than its factorization.

28559799185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4331847.

The product of its digits is 81648000, while the sum is 68.

The spelling of 28559799185 in words is "twenty-eight billion, five hundred fifty-nine million, seven hundred ninety-nine thousand, one hundred eighty-five".