27420562427 has 2 divisors, whose sum is σ = 27420562428. Its totient is φ = 27420562426.

The previous prime is 27420562409. The next prime is 27420562483. The reversal of 27420562427 is 72426502472.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27420562427 - 2¹⁸ = 27420300283 is a prime.

It is not a weakly prime, because it can be changed into another prime (27420562327) 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, 13710281213 + 13710281214.

It is an arithmetic number, because the mean of its divisors is an integer number (13710281214).

Almost surely, 2^27420562427 is an apocalyptic number.

27420562427 is a deficient number, since it is larger than the sum of its proper divisors (1).

27420562427 is an equidigital number, since it uses as much as digits as its factorization.

27420562427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 376320, while the sum is 41.

The spelling of 27420562427 in words is "twenty-seven billion, four hundred twenty million, five hundred sixty-two thousand, four hundred twenty-seven".