27668816311 has 2 divisors, whose sum is σ = 27668816312. Its totient is φ = 27668816310.

The previous prime is 27668816303. The next prime is 27668816359. The reversal of 27668816311 is 11361886672.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27668816311 - 2³ = 27668816303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27668816111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13834408155 + 13834408156.

It is an arithmetic number, because the mean of its divisors is an integer number (13834408156).

Almost surely, 2^27668816311 is an apocalyptic number.

27668816311 is a deficient number, since it is larger than the sum of its proper divisors (1).

27668816311 is an equidigital number, since it uses as much as digits as its factorization.

27668816311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 49.

The spelling of 27668816311 in words is "twenty-seven billion, six hundred sixty-eight million, eight hundred sixteen thousand, three hundred eleven".