27693042899 has 2 divisors, whose sum is σ = 27693042900. Its totient is φ = 27693042898.

The previous prime is 27693042893. The next prime is 27693042901. The reversal of 27693042899 is 99824039672.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27693042899 is a prime.

Together with 27693042901, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27693042893) 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, 13846521449 + 13846521450.

It is an arithmetic number, because the mean of its divisors is an integer number (13846521450).

Almost surely, 2^27693042899 is an apocalyptic number.

27693042899 is a deficient number, since it is larger than the sum of its proper divisors (1).

27693042899 is an equidigital number, since it uses as much as digits as its factorization.

27693042899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11757312, while the sum is 59.

The spelling of 27693042899 in words is "twenty-seven billion, six hundred ninety-three million, forty-two thousand, eight hundred ninety-nine".