27051568091 has 2 divisors, whose sum is σ = 27051568092. Its totient is φ = 27051568090.

The previous prime is 27051568073. The next prime is 27051568111. The reversal of 27051568091 is 19086515072.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27051568091 - 2¹⁴ = 27051551707 is a prime.

It is not a weakly prime, because it can be changed into another prime (27051568001) 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, 13525784045 + 13525784046.

It is an arithmetic number, because the mean of its divisors is an integer number (13525784046).

Almost surely, 2^27051568091 is an apocalyptic number.

27051568091 is a deficient number, since it is larger than the sum of its proper divisors (1).

27051568091 is an equidigital number, since it uses as much as digits as its factorization.

27051568091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 44.

The spelling of 27051568091 in words is "twenty-seven billion, fifty-one million, five hundred sixty-eight thousand, ninety-one".