27764456659 has 2 divisors, whose sum is σ = 27764456660. Its totient is φ = 27764456658.

The previous prime is 27764456611. The next prime is 27764456689. The reversal of 27764456659 is 95665446772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27764456659 - 2⁹ = 27764456147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27764456597 and 27764456606.

It is not a weakly prime, because it can be changed into another prime (27764456609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13882228329 + 13882228330.

It is an arithmetic number, because the mean of its divisors is an integer number (13882228330).

Almost surely, 2^27764456659 is an apocalyptic number.

27764456659 is a deficient number, since it is larger than the sum of its proper divisors (1).

27764456659 is an equidigital number, since it uses as much as digits as its factorization.

27764456659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 76204800, while the sum is 61.

The spelling of 27764456659 in words is "twenty-seven billion, seven hundred sixty-four million, four hundred fifty-six thousand, six hundred fifty-nine".