27567634013 has 2 divisors, whose sum is σ = 27567634014. Its totient is φ = 27567634012.

The previous prime is 27567633991. The next prime is 27567634069. The reversal of 27567634013 is 31043676572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16500173209 + 11067460804 = 128453^2 + 105202^2 .

It is a cyclic number.

It is not a de Polignac number, because 27567634013 - 2¹² = 27567629917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27567634093) 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, 13783817006 + 13783817007.

It is an arithmetic number, because the mean of its divisors is an integer number (13783817007).

Almost surely, 2^27567634013 is an apocalyptic number.

It is an amenable number.

27567634013 is a deficient number, since it is larger than the sum of its proper divisors (1).

27567634013 is an equidigital number, since it uses as much as digits as its factorization.

27567634013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 44.

The spelling of 27567634013 in words is "twenty-seven billion, five hundred sixty-seven million, six hundred thirty-four thousand, thirteen".