27510676681 has 2 divisors, whose sum is σ = 27510676682. Its totient is φ = 27510676680.

The previous prime is 27510676651. The next prime is 27510676691. The reversal of 27510676681 is 18667601572.

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., 19706544400 + 7804132281 = 140380^2 + 88341^2 .

It is a cyclic number.

It is not a de Polignac number, because 27510676681 - 2¹⁹ = 27510152393 is a prime.

It is a super-2 number, since 2×27510676681² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27510676651) 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, 13755338340 + 13755338341.

It is an arithmetic number, because the mean of its divisors is an integer number (13755338341).

Almost surely, 2^27510676681 is an apocalyptic number.

It is an amenable number.

27510676681 is a deficient number, since it is larger than the sum of its proper divisors (1).

27510676681 is an equidigital number, since it uses as much as digits as its factorization.

27510676681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 846720, while the sum is 49.

The spelling of 27510676681 in words is "twenty-seven billion, five hundred ten million, six hundred seventy-six thousand, six hundred eighty-one".