27338000681 has 2 divisors, whose sum is σ = 27338000682. Its totient is φ = 27338000680.

The previous prime is 27338000653. The next prime is 27338000699. The reversal of 27338000681 is 18600083372.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13670286400 + 13667714281 = 116920^2 + 116909^2 .

It is a cyclic number.

It is not a de Polignac number, because 27338000681 - 2³⁰ = 26264258857 is a prime.

It is a super-2 number, since 2×27338000681² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27338000581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13669000340 + 13669000341.

It is an arithmetic number, because the mean of its divisors is an integer number (13669000341).

Almost surely, 2^27338000681 is an apocalyptic number.

It is an amenable number.

27338000681 is a deficient number, since it is larger than the sum of its proper divisors (1).

27338000681 is an equidigital number, since it uses as much as digits as its factorization.

27338000681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 27338000681 in words is "twenty-seven billion, three hundred thirty-eight million, six hundred eighty-one", and thus it is an aban number.