27563510855579 has 2 divisors, whose sum is σ = 27563510855580. Its totient is φ = 27563510855578.

The previous prime is 27563510855567. The next prime is 27563510855581. The reversal of 27563510855579 is 97555801536572.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27563510855579 - 2⁴ = 27563510855563 is a prime.

Together with 27563510855581, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27563510855599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13781755427789 + 13781755427790.

It is an arithmetic number, because the mean of its divisors is an integer number (13781755427790).

Almost surely, 2^{27563510855579} is an apocalyptic number.

27563510855579 is a deficient number, since it is larger than the sum of its proper divisors (1).

27563510855579 is an equidigital number, since it uses as much as digits as its factorization.

27563510855579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 396900000, while the sum is 68.

The spelling of 27563510855579 in words is "twenty-seven trillion, five hundred sixty-three billion, five hundred ten million, eight hundred fifty-five thousand, five hundred seventy-nine".