27568739040561 has 12 divisors (see below), whose sum is σ = 40065815703888. Its totient is φ = 18266403780504.

The previous prime is 27568739040539. The next prime is 27568739040629. The reversal of 27568739040561 is 16504093786572.

27568739040561 is a `hidden beast` number, since 2 + 7 + 5 + 6 + 87 + 3 + 90 + 405 + 61 = 666.

It is not a de Polignac number, because 27568739040561 - 2²⁷ = 27568604822833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27568739047561) 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 in 11 ways as a sum of consecutive naturals, for example, 9396296775 + ... + 9396299708.

It is an arithmetic number, because the mean of its divisors is an integer number (3338817975324).

It is a 1-persistent number, because it is pandigital, but 2⋅27568739040561 = 55137478081122 is not.

Almost surely, 2^{27568739040561} is an apocalyptic number.

It is an amenable number.

27568739040561 is a deficient number, since it is larger than the sum of its proper divisors (12497076663327).

27568739040561 is a wasteful number, since it uses less digits than its factorization.

27568739040561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18792596652 (or 18792596649 counting only the distinct ones).

The product of its (nonzero) digits is 76204800, while the sum is 63.

The spelling of 27568739040561 in words is "twenty-seven trillion, five hundred sixty-eight billion, seven hundred thirty-nine million, forty thousand, five hundred sixty-one".