28124789599 has 16 divisors (see below), whose sum is σ = 29342376000. Its totient is φ = 26924679936.

The previous prime is 28124789569. The next prime is 28124789617. The reversal of 28124789599 is 99598742182.

It is a cyclic number.

It is not a de Polignac number, because 28124789599 - 2¹⁹ = 28124265311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28124789599.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28124789509) 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, 1682587 + ... + 1699219.

It is an arithmetic number, because the mean of its divisors is an integer number (1833898500).

Almost surely, 2^28124789599 is an apocalyptic number.

28124789599 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

28124789599 is a deficient number, since it is larger than the sum of its proper divisors (1217586401).

28124789599 is a wasteful number, since it uses less digits than its factorization.

28124789599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17154.

The product of its digits is 26127360, while the sum is 64.

The spelling of 28124789599 in words is "twenty-eight billion, one hundred twenty-four million, seven hundred eighty-nine thousand, five hundred ninety-nine".