27456464591 has 2 divisors, whose sum is σ = 27456464592. Its totient is φ = 27456464590.

The previous prime is 27456464561. The next prime is 27456464621. The reversal of 27456464591 is 19546465472.

It is a balanced prime because it is at equal distance from previous prime (27456464561) and next prime (27456464621).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27456464591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27456464561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13728232295 + 13728232296.

It is an arithmetic number, because the mean of its divisors is an integer number (13728232296).

Almost surely, 2^27456464591 is an apocalyptic number.

27456464591 is a deficient number, since it is larger than the sum of its proper divisors (1).

27456464591 is an equidigital number, since it uses as much as digits as its factorization.

27456464591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7257600, while the sum is 53.

The spelling of 27456464591 in words is "twenty-seven billion, four hundred fifty-six million, four hundred sixty-four thousand, five hundred ninety-one".