27860252297 has 2 divisors, whose sum is σ = 27860252298. Its totient is φ = 27860252296.

The previous prime is 27860252281. The next prime is 27860252339. The reversal of 27860252297 is 79225206872.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22585280656 + 5274971641 = 150284^2 + 72629^2 .

It is a cyclic number.

It is not a de Polignac number, because 27860252297 - 2⁴ = 27860252281 is a prime.

It is not a weakly prime, because it can be changed into another prime (27860252257) 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, 13930126148 + 13930126149.

It is an arithmetic number, because the mean of its divisors is an integer number (13930126149).

Almost surely, 2^27860252297 is an apocalyptic number.

It is an amenable number.

27860252297 is a deficient number, since it is larger than the sum of its proper divisors (1).

27860252297 is an equidigital number, since it uses as much as digits as its factorization.

27860252297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1693440, while the sum is 50.

The spelling of 27860252297 in words is "twenty-seven billion, eight hundred sixty million, two hundred fifty-two thousand, two hundred ninety-seven".