27082015138813 has 2 divisors, whose sum is σ = 27082015138814. Its totient is φ = 27082015138812.

The previous prime is 27082015138769. The next prime is 27082015138819. The reversal of 27082015138813 is 31883151028072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20030664166969 + 7051350971844 = 4475563^2 + 2655438^2 .

It is a cyclic number.

It is not a de Polignac number, because 27082015138813 - 2⁴¹ = 24882991883261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27082015138819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13541007569406 + 13541007569407.

It is an arithmetic number, because the mean of its divisors is an integer number (13541007569407).

Almost surely, 2^{27082015138813} is an apocalyptic number.

It is an amenable number.

27082015138813 is a deficient number, since it is larger than the sum of its proper divisors (1).

27082015138813 is an equidigital number, since it uses as much as digits as its factorization.

27082015138813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 645120, while the sum is 49.

The spelling of 27082015138813 in words is "twenty-seven trillion, eighty-two billion, fifteen million, one hundred thirty-eight thousand, eight hundred thirteen".