27180020099 has 2 divisors, whose sum is σ = 27180020100. Its totient is φ = 27180020098.

The previous prime is 27180020057. The next prime is 27180020111. The reversal of 27180020099 is 99002008172.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27180020099 - 2⁸ = 27180019843 is a prime.

It is not a weakly prime, because it can be changed into another prime (27180023099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13590010049 + 13590010050.

It is an arithmetic number, because the mean of its divisors is an integer number (13590010050).

Almost surely, 2^27180020099 is an apocalyptic number.

27180020099 is a deficient number, since it is larger than the sum of its proper divisors (1).

27180020099 is an equidigital number, since it uses as much as digits as its factorization.

27180020099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 38.

The spelling of 27180020099 in words is "twenty-seven billion, one hundred eighty million, twenty thousand, ninety-nine".