28080223439 has 2 divisors, whose sum is σ = 28080223440. Its totient is φ = 28080223438.

The previous prime is 28080223403. The next prime is 28080223441. The reversal of 28080223439 is 93432208082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28080223439 - 2²⁴ = 28063446223 is a prime.

Together with 28080223441, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 28080223396 and 28080223405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28080220439) 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, 14040111719 + 14040111720.

It is an arithmetic number, because the mean of its divisors is an integer number (14040111720).

Almost surely, 2^28080223439 is an apocalyptic number.

28080223439 is a deficient number, since it is larger than the sum of its proper divisors (1).

28080223439 is an equidigital number, since it uses as much as digits as its factorization.

28080223439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 28080223439 in words is "twenty-eight billion, eighty million, two hundred twenty-three thousand, four hundred thirty-nine".