27213656227 has 2 divisors, whose sum is σ = 27213656228. Its totient is φ = 27213656226.

The previous prime is 27213656209. The next prime is 27213656237. The reversal of 27213656227 is 72265631272.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27213656227 is a prime.

It is not a weakly prime, because it can be changed into another prime (27213656237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13606828113 + 13606828114.

It is an arithmetic number, because the mean of its divisors is an integer number (13606828114).

Almost surely, 2^27213656227 is an apocalyptic number.

27213656227 is a deficient number, since it is larger than the sum of its proper divisors (1).

27213656227 is an equidigital number, since it uses as much as digits as its factorization.

27213656227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 43.

The spelling of 27213656227 in words is "twenty-seven billion, two hundred thirteen million, six hundred fifty-six thousand, two hundred twenty-seven".