27052945891 has 2 divisors, whose sum is σ = 27052945892. Its totient is φ = 27052945890.

The previous prime is 27052945889. The next prime is 27052945963. The reversal of 27052945891 is 19854925072.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27052945891 - 2¹ = 27052945889 is a prime.

Together with 27052945889, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (27052945831) 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, 13526472945 + 13526472946.

It is an arithmetic number, because the mean of its divisors is an integer number (13526472946).

Almost surely, 2^27052945891 is an apocalyptic number.

27052945891 is a deficient number, since it is larger than the sum of its proper divisors (1).

27052945891 is an equidigital number, since it uses as much as digits as its factorization.

27052945891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 52.

The spelling of 27052945891 in words is "twenty-seven billion, fifty-two million, nine hundred forty-five thousand, eight hundred ninety-one".