27091343659 has 2 divisors, whose sum is σ = 27091343660. Its totient is φ = 27091343658.

The previous prime is 27091343611. The next prime is 27091343663. The reversal of 27091343659 is 95634319072.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27091343659 - 2¹¹ = 27091341611 is a prime.

It is not a weakly prime, because it can be changed into another prime (27091343159) 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, 13545671829 + 13545671830.

It is an arithmetic number, because the mean of its divisors is an integer number (13545671830).

Almost surely, 2^27091343659 is an apocalyptic number.

27091343659 is a deficient number, since it is larger than the sum of its proper divisors (1).

27091343659 is an equidigital number, since it uses as much as digits as its factorization.

27091343659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1224720, while the sum is 49.

The spelling of 27091343659 in words is "twenty-seven billion, ninety-one million, three hundred forty-three thousand, six hundred fifty-nine".