27111211189 has 2 divisors, whose sum is σ = 27111211190. Its totient is φ = 27111211188.

The previous prime is 27111211163. The next prime is 27111211223. The reversal of 27111211189 is 98111211172.

It is a happy number.

It is an a-pointer prime, because the next prime (27111211223) can be obtained adding 27111211189 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27106988164 + 4223025 = 164642^2 + 2055^2 .

It is a cyclic number.

It is not a de Polignac number, because 27111211189 - 2⁹ = 27111210677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27111211129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13555605594 + 13555605595.

It is an arithmetic number, because the mean of its divisors is an integer number (13555605595).

Almost surely, 2^27111211189 is an apocalyptic number.

It is an amenable number.

27111211189 is a deficient number, since it is larger than the sum of its proper divisors (1).

27111211189 is an equidigital number, since it uses as much as digits as its factorization.

27111211189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 34.

The spelling of 27111211189 in words is "twenty-seven billion, one hundred eleven million, two hundred eleven thousand, one hundred eighty-nine".