27136167677 has 2 divisors, whose sum is σ = 27136167678. Its totient is φ = 27136167676.

The previous prime is 27136167661. The next prime is 27136167679. The reversal of 27136167677 is 77676163172.

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., 27125760601 + 10407076 = 164699^2 + 3226^2 .

It is a cyclic number.

It is not a de Polignac number, because 27136167677 - 2⁴ = 27136167661 is a prime.

Together with 27136167679, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27136167679) 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, 13568083838 + 13568083839.

It is an arithmetic number, because the mean of its divisors is an integer number (13568083839).

Almost surely, 2^27136167677 is an apocalyptic number.

It is an amenable number.

27136167677 is a deficient number, since it is larger than the sum of its proper divisors (1).

27136167677 is an equidigital number, since it uses as much as digits as its factorization.

27136167677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3111696, while the sum is 53.

The spelling of 27136167677 in words is "twenty-seven billion, one hundred thirty-six million, one hundred sixty-seven thousand, six hundred seventy-seven".