18775027656227 has 2 divisors, whose sum is σ = 18775027656228. Its totient is φ = 18775027656226.

The previous prime is 18775027656211. The next prime is 18775027656311. The reversal of 18775027656227 is 72265672057781.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18775027656227 - 2⁴ = 18775027656211 is a prime.

It is not a weakly prime, because it can be changed into another prime (18775027650227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9387513828113 + 9387513828114.

It is an arithmetic number, because the mean of its divisors is an integer number (9387513828114).

Almost surely, 2^{18775027656227} is an apocalyptic number.

18775027656227 is a deficient number, since it is larger than the sum of its proper divisors (1).

18775027656227 is an equidigital number, since it uses as much as digits as its factorization.

18775027656227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138297600, while the sum is 65.

The spelling of 18775027656227 in words is "eighteen trillion, seven hundred seventy-five billion, twenty-seven million, six hundred fifty-six thousand, two hundred twenty-seven".