27905448559 has 2 divisors, whose sum is σ = 27905448560. Its totient is φ = 27905448558.

The previous prime is 27905448503. The next prime is 27905448607. The reversal of 27905448559 is 95584450972.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27905448559 - 2¹⁷ = 27905317487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27905448959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13952724279 + 13952724280.

It is an arithmetic number, because the mean of its divisors is an integer number (13952724280).

Almost surely, 2^27905448559 is an apocalyptic number.

27905448559 is a deficient number, since it is larger than the sum of its proper divisors (1).

27905448559 is an equidigital number, since it uses as much as digits as its factorization.

27905448559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144000, while the sum is 58.

The spelling of 27905448559 in words is "twenty-seven billion, nine hundred five million, four hundred forty-eight thousand, five hundred fifty-nine".