27665227927 has 2 divisors, whose sum is σ = 27665227928. Its totient is φ = 27665227926.

The previous prime is 27665227901. The next prime is 27665227939. The reversal of 27665227927 is 72972256672.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27665227927 - 2²³ = 27656839319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27665227427) 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, 13832613963 + 13832613964.

It is an arithmetic number, because the mean of its divisors is an integer number (13832613964).

Almost surely, 2^27665227927 is an apocalyptic number.

27665227927 is a deficient number, since it is larger than the sum of its proper divisors (1).

27665227927 is an equidigital number, since it uses as much as digits as its factorization.

27665227927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8890560, while the sum is 55.

The spelling of 27665227927 in words is "twenty-seven billion, six hundred sixty-five million, two hundred twenty-seven thousand, nine hundred twenty-seven".