27012591323 has 2 divisors, whose sum is σ = 27012591324. Its totient is φ = 27012591322.

The previous prime is 27012591317. The next prime is 27012591349. The reversal of 27012591323 is 32319521072.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27012591323 - 2⁶ = 27012591259 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (27012591313) 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, 13506295661 + 13506295662.

It is an arithmetic number, because the mean of its divisors is an integer number (13506295662).

Almost surely, 2^27012591323 is an apocalyptic number.

27012591323 is a deficient number, since it is larger than the sum of its proper divisors (1).

27012591323 is an equidigital number, since it uses as much as digits as its factorization.

27012591323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 35.

The spelling of 27012591323 in words is "twenty-seven billion, twelve million, five hundred ninety-one thousand, three hundred twenty-three".