27193115023381 has 2 divisors, whose sum is σ = 27193115023382. Its totient is φ = 27193115023380.

The previous prime is 27193115023351. The next prime is 27193115023391. The reversal of 27193115023381 is 18332051139172.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20184038802225 + 7009076221156 = 4492665^2 + 2647466^2 .

It is a cyclic number.

It is not a de Polignac number, because 27193115023381 - 2¹¹ = 27193115021333 is a prime.

It is a super-3 number, since 3×27193115023381³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27193115023351) 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, 13596557511690 + 13596557511691.

It is an arithmetic number, because the mean of its divisors is an integer number (13596557511691).

Almost surely, 2^{27193115023381} is an apocalyptic number.

It is an amenable number.

27193115023381 is a deficient number, since it is larger than the sum of its proper divisors (1).

27193115023381 is an equidigital number, since it uses as much as digits as its factorization.

27193115023381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 27193115023381 in words is "twenty-seven trillion, one hundred ninety-three billion, one hundred fifteen million, twenty-three thousand, three hundred eighty-one".