27771232267 has 2 divisors, whose sum is σ = 27771232268. Its totient is φ = 27771232266.

The previous prime is 27771232261. The next prime is 27771232297. The reversal of 27771232267 is 76223217772.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27771232267 - 2³ = 27771232259 is a prime.

It is not a weakly prime, because it can be changed into another prime (27771232261) 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, 13885616133 + 13885616134.

It is an arithmetic number, because the mean of its divisors is an integer number (13885616134).

Almost surely, 2^27771232267 is an apocalyptic number.

27771232267 is a deficient number, since it is larger than the sum of its proper divisors (1).

27771232267 is an equidigital number, since it uses as much as digits as its factorization.

27771232267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 691488, while the sum is 46.

The spelling of 27771232267 in words is "twenty-seven billion, seven hundred seventy-one million, two hundred thirty-two thousand, two hundred sixty-seven".