27766327291 has 2 divisors, whose sum is σ = 27766327292. Its totient is φ = 27766327290.

The previous prime is 27766327187. The next prime is 27766327339. The reversal of 27766327291 is 19272366772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27766327291 - 2⁹ = 27766326779 is a prime.

It is not a weakly prime, because it can be changed into another prime (27766327591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13883163645 + 13883163646.

It is an arithmetic number, because the mean of its divisors is an integer number (13883163646).

Almost surely, 2^27766327291 is an apocalyptic number.

27766327291 is a deficient number, since it is larger than the sum of its proper divisors (1).

27766327291 is an equidigital number, since it uses as much as digits as its factorization.

27766327291 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 27766327291 in words is "twenty-seven billion, seven hundred sixty-six million, three hundred twenty-seven thousand, two hundred ninety-one".