27456197759 has 2 divisors, whose sum is σ = 27456197760. Its totient is φ = 27456197758.

The previous prime is 27456197723. The next prime is 27456197773. The reversal of 27456197759 is 95779165472.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27456197759 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27456197059) 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, 13728098879 + 13728098880.

It is an arithmetic number, because the mean of its divisors is an integer number (13728098880).

Almost surely, 2^27456197759 is an apocalyptic number.

27456197759 is a deficient number, since it is larger than the sum of its proper divisors (1).

27456197759 is an equidigital number, since it uses as much as digits as its factorization.

27456197759 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33339600, while the sum is 62.

The spelling of 27456197759 in words is "twenty-seven billion, four hundred fifty-six million, one hundred ninety-seven thousand, seven hundred fifty-nine".