2564209313227 has 2 divisors, whose sum is σ = 2564209313228. Its totient is φ = 2564209313226.

The previous prime is 2564209313203. The next prime is 2564209313243. The reversal of 2564209313227 is 7223139024652.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2564209313227 is a prime.

It is not a weakly prime, because it can be changed into another prime (2564209313257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282104656613 + 1282104656614.

It is an arithmetic number, because the mean of its divisors is an integer number (1282104656614).

Almost surely, 2^{2564209313227} is an apocalyptic number.

2564209313227 is a deficient number, since it is larger than the sum of its proper divisors (1).

2564209313227 is an equidigital number, since it uses as much as digits as its factorization.

2564209313227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 46.

The spelling of 2564209313227 in words is "two trillion, five hundred sixty-four billion, two hundred nine million, three hundred thirteen thousand, two hundred twenty-seven".