27767955863 has 2 divisors, whose sum is σ = 27767955864. Its totient is φ = 27767955862.

The previous prime is 27767955773. The next prime is 27767955871. The reversal of 27767955863 is 36855976772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27767955863 - 2³⁰ = 26694214039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27767955863.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27767955893) 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, 13883977931 + 13883977932.

It is an arithmetic number, because the mean of its divisors is an integer number (13883977932).

Almost surely, 2^27767955863 is an apocalyptic number.

27767955863 is a deficient number, since it is larger than the sum of its proper divisors (1).

27767955863 is an equidigital number, since it uses as much as digits as its factorization.

27767955863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 133358400, while the sum is 65.

The spelling of 27767955863 in words is "twenty-seven billion, seven hundred sixty-seven million, nine hundred fifty-five thousand, eight hundred sixty-three".