27108586613 has 2 divisors, whose sum is σ = 27108586614. Its totient is φ = 27108586612.

The previous prime is 27108586607. The next prime is 27108586691. The reversal of 27108586613 is 31668580172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22206066289 + 4902520324 = 149017^2 + 70018^2 .

It is a cyclic number.

It is not a de Polignac number, because 27108586613 - 2²² = 27104392309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27108588613) 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, 13554293306 + 13554293307.

It is an arithmetic number, because the mean of its divisors is an integer number (13554293307).

Almost surely, 2^27108586613 is an apocalyptic number.

It is an amenable number.

27108586613 is a deficient number, since it is larger than the sum of its proper divisors (1).

27108586613 is an equidigital number, since it uses as much as digits as its factorization.

27108586613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 27108586613 in words is "twenty-seven billion, one hundred eight million, five hundred eighty-six thousand, six hundred thirteen".