28754387199 has 12 divisors (see below), whose sum is σ = 42119103312. Its totient is φ = 18899596800.

The previous prime is 28754387183. The next prime is 28754387201. The reversal of 28754387199 is 99178345782.

28754387199 is a `hidden beast` number, since 2 + 8 + 7 + 5 + 438 + 7 + 199 = 666.

It is not a de Polignac number, because 28754387199 - 2⁴ = 28754387183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28754387899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22498882 + ... + 22500159.

It is an arithmetic number, because the mean of its divisors is an integer number (3509925276).

Almost surely, 2^28754387199 is an apocalyptic number.

28754387199 is a deficient number, since it is larger than the sum of its proper divisors (13364716113).

28754387199 is a wasteful number, since it uses less digits than its factorization.

28754387199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44999118 (or 44999115 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 63.

The spelling of 28754387199 in words is "twenty-eight billion, seven hundred fifty-four million, three hundred eighty-seven thousand, one hundred ninety-nine".