27245865287 has 2 divisors, whose sum is σ = 27245865288. Its totient is φ = 27245865286.

The previous prime is 27245865281. The next prime is 27245865289. The reversal of 27245865287 is 78256854272.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27245865287 - 2⁶ = 27245865223 is a prime.

Together with 27245865289, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27245865281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13622932643 + 13622932644.

It is an arithmetic number, because the mean of its divisors is an integer number (13622932644).

Almost surely, 2^27245865287 is an apocalyptic number.

27245865287 is a deficient number, since it is larger than the sum of its proper divisors (1).

27245865287 is an equidigital number, since it uses as much as digits as its factorization.

27245865287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15052800, while the sum is 56.

The spelling of 27245865287 in words is "twenty-seven billion, two hundred forty-five million, eight hundred sixty-five thousand, two hundred eighty-seven".