28357484879 has 2 divisors, whose sum is σ = 28357484880. Its totient is φ = 28357484878.

The previous prime is 28357484843. The next prime is 28357484923. The reversal of 28357484879 is 97848475382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28357484879 - 2²⁸ = 28089049423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28357486879) 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, 14178742439 + 14178742440.

It is an arithmetic number, because the mean of its divisors is an integer number (14178742440).

Almost surely, 2^28357484879 is an apocalyptic number.

28357484879 is a deficient number, since it is larger than the sum of its proper divisors (1).

28357484879 is an equidigital number, since it uses as much as digits as its factorization.

28357484879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108380160, while the sum is 65.

The spelling of 28357484879 in words is "twenty-eight billion, three hundred fifty-seven million, four hundred eighty-four thousand, eight hundred seventy-nine".