27898661852227 has 2 divisors, whose sum is σ = 27898661852228. Its totient is φ = 27898661852226.

The previous prime is 27898661852161. The next prime is 27898661852261. The reversal of 27898661852227 is 72225816689872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27898661852227 - 2¹¹ = 27898661850179 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27898661852227.

It is not a weakly prime, because it can be changed into another prime (27898661852627) 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, 13949330926113 + 13949330926114.

It is an arithmetic number, because the mean of its divisors is an integer number (13949330926114).

Almost surely, 2^{27898661852227} is an apocalyptic number.

27898661852227 is a deficient number, since it is larger than the sum of its proper divisors (1).

27898661852227 is an equidigital number, since it uses as much as digits as its factorization.

27898661852227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 650280960, while the sum is 73.

The spelling of 27898661852227 in words is "twenty-seven trillion, eight hundred ninety-eight billion, six hundred sixty-one million, eight hundred fifty-two thousand, two hundred twenty-seven".