28080220439 has 2 divisors, whose sum is σ = 28080220440. Its totient is φ = 28080220438.

The previous prime is 28080220417. The next prime is 28080220459. The reversal of 28080220439 is 93402208082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28080220439 - 2¹⁶ = 28080154903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28080220459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14040110219 + 14040110220.

It is an arithmetic number, because the mean of its divisors is an integer number (14040110220).

Almost surely, 2^28080220439 is an apocalyptic number.

28080220439 is a deficient number, since it is larger than the sum of its proper divisors (1).

28080220439 is an equidigital number, since it uses as much as digits as its factorization.

28080220439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 38.

The spelling of 28080220439 in words is "twenty-eight billion, eighty million, two hundred twenty thousand, four hundred thirty-nine".