27100108081 has 2 divisors, whose sum is σ = 27100108082. Its totient is φ = 27100108080.

The previous prime is 27100108043. The next prime is 27100108103. The reversal of 27100108081 is 18080100172.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27087893056 + 12215025 = 164584^2 + 3495^2 .

It is a cyclic number.

It is not a de Polignac number, because 27100108081 - 2³³ = 18510173489 is a prime.

It is a super-3 number, since 3×27100108081³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (27100108381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13550054040 + 13550054041.

It is an arithmetic number, because the mean of its divisors is an integer number (13550054041).

Almost surely, 2^27100108081 is an apocalyptic number.

It is an amenable number.

27100108081 is a deficient number, since it is larger than the sum of its proper divisors (1).

27100108081 is an equidigital number, since it uses as much as digits as its factorization.

27100108081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 28.

The spelling of 27100108081 in words is "twenty-seven billion, one hundred million, one hundred eight thousand, eighty-one".