27043613699 has 2 divisors, whose sum is σ = 27043613700. Its totient is φ = 27043613698.

The previous prime is 27043613609. The next prime is 27043613741. The reversal of 27043613699 is 99631634072.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27043613699 is a prime.

It is not a weakly prime, because it can be changed into another prime (27043613609) 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, 13521806849 + 13521806850.

It is an arithmetic number, because the mean of its divisors is an integer number (13521806850).

Almost surely, 2^27043613699 is an apocalyptic number.

27043613699 is a deficient number, since it is larger than the sum of its proper divisors (1).

27043613699 is an equidigital number, since it uses as much as digits as its factorization.

27043613699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1469664, while the sum is 50.

The spelling of 27043613699 in words is "twenty-seven billion, forty-three million, six hundred thirteen thousand, six hundred ninety-nine".