27227766193 has 2 divisors, whose sum is σ = 27227766194. Its totient is φ = 27227766192.

The previous prime is 27227766157. The next prime is 27227766211. The reversal of 27227766193 is 39166772272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15085489329 + 12142276864 = 122823^2 + 110192^2 .

It is a cyclic number.

It is not a de Polignac number, because 27227766193 - 2¹⁷ = 27227635121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27227766193.

It is not a weakly prime, because it can be changed into another prime (27227766893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13613883096 + 13613883097.

It is an arithmetic number, because the mean of its divisors is an integer number (13613883097).

Almost surely, 2^27227766193 is an apocalyptic number.

It is an amenable number.

27227766193 is a deficient number, since it is larger than the sum of its proper divisors (1).

27227766193 is an equidigital number, since it uses as much as digits as its factorization.

27227766193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2667168, while the sum is 52.

The spelling of 27227766193 in words is "twenty-seven billion, two hundred twenty-seven million, seven hundred sixty-six thousand, one hundred ninety-three".