27788842367 has 32 divisors (see below), whose sum is σ = 33277366080. Its totient is φ = 22873374720.

The previous prime is 27788842357. The next prime is 27788842381. The reversal of 27788842367 is 76324888772.

It is a cyclic number.

It is not a de Polignac number, because 27788842367 - 2⁶ = 27788842303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27788842357) 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 in 31 ways as a sum of consecutive naturals, for example, 1558559 + ... + 1576287.

It is an arithmetic number, because the mean of its divisors is an integer number (1039917690).

Almost surely, 2^27788842367 is an apocalyptic number.

27788842367 is a deficient number, since it is larger than the sum of its proper divisors (5488523713).

27788842367 is a wasteful number, since it uses less digits than its factorization.

27788842367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17963.

The product of its digits is 50577408, while the sum is 62.

The spelling of 27788842367 in words is "twenty-seven billion, seven hundred eighty-eight million, eight hundred forty-two thousand, three hundred sixty-seven".