27918994027 has 2 divisors, whose sum is σ = 27918994028. Its totient is φ = 27918994026.

The previous prime is 27918994007. The next prime is 27918994031. The reversal of 27918994027 is 72049981972.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27918994027 - 2¹⁹ = 27918469739 is a prime.

It is not a weakly prime, because it can be changed into another prime (27918994007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13959497013 + 13959497014.

It is an arithmetic number, because the mean of its divisors is an integer number (13959497014).

Almost surely, 2^27918994027 is an apocalyptic number.

27918994027 is a deficient number, since it is larger than the sum of its proper divisors (1).

27918994027 is an equidigital number, since it uses as much as digits as its factorization.

27918994027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4572288, while the sum is 58.

The spelling of 27918994027 in words is "twenty-seven billion, nine hundred eighteen million, nine hundred ninety-four thousand, twenty-seven".