28567123199 has 2 divisors, whose sum is σ = 28567123200. Its totient is φ = 28567123198.

The previous prime is 28567123183. The next prime is 28567123241. The reversal of 28567123199 is 99132176582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28567123199 - 2⁴ = 28567123183 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28567123199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28567120199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14283561599 + 14283561600.

It is an arithmetic number, because the mean of its divisors is an integer number (14283561600).

Almost surely, 2^28567123199 is an apocalyptic number.

28567123199 is a deficient number, since it is larger than the sum of its proper divisors (1).

28567123199 is an equidigital number, since it uses as much as digits as its factorization.

28567123199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 53.

The spelling of 28567123199 in words is "twenty-eight billion, five hundred sixty-seven million, one hundred twenty-three thousand, one hundred ninety-nine".