27817270099 has 2 divisors, whose sum is σ = 27817270100. Its totient is φ = 27817270098.

The previous prime is 27817270087. The next prime is 27817270171. The reversal of 27817270099 is 99007271872.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27817270099 - 2⁵ = 27817270067 is a prime.

It is not a weakly prime, because it can be changed into another prime (27817270199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13908635049 + 13908635050.

It is an arithmetic number, because the mean of its divisors is an integer number (13908635050).

Almost surely, 2^27817270099 is an apocalyptic number.

27817270099 is a deficient number, since it is larger than the sum of its proper divisors (1).

27817270099 is an equidigital number, since it uses as much as digits as its factorization.

27817270099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 889056, while the sum is 52.

The spelling of 27817270099 in words is "twenty-seven billion, eight hundred seventeen million, two hundred seventy thousand, ninety-nine".