28556465599 has 2 divisors, whose sum is σ = 28556465600. Its totient is φ = 28556465598.

The previous prime is 28556465563. The next prime is 28556465627. The reversal of 28556465599 is 99556465582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28556465599 - 2⁷ = 28556465471 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28556465599.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28556465299) 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 as a sum of consecutive naturals, namely, 14278232799 + 14278232800.

It is an arithmetic number, because the mean of its divisors is an integer number (14278232800).

Almost surely, 2^28556465599 is an apocalyptic number.

28556465599 is a deficient number, since it is larger than the sum of its proper divisors (1).

28556465599 is an equidigital number, since it uses as much as digits as its factorization.

28556465599 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640000, while the sum is 64.

The spelling of 28556465599 in words is "twenty-eight billion, five hundred fifty-six million, four hundred sixty-five thousand, five hundred ninety-nine".