27936497899 has 2 divisors, whose sum is σ = 27936497900. Its totient is φ = 27936497898.

The previous prime is 27936497893. The next prime is 27936497909. The reversal of 27936497899 is 99879463972.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27936497899 is a prime.

It is not a weakly prime, because it can be changed into another prime (27936497893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13968248949 + 13968248950.

It is an arithmetic number, because the mean of its divisors is an integer number (13968248950).

Almost surely, 2^27936497899 is an apocalyptic number.

27936497899 is a deficient number, since it is larger than the sum of its proper divisors (1).

27936497899 is an equidigital number, since it uses as much as digits as its factorization.

27936497899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 370355328, while the sum is 73.

The spelling of 27936497899 in words is "twenty-seven billion, nine hundred thirty-six million, four hundred ninety-seven thousand, eight hundred ninety-nine".