27027000009 has 6 divisors (see below), whose sum is σ = 39039000026. Its totient is φ = 18018000000.

The previous prime is 27026999963. The next prime is 27027000023. The reversal of 27027000009 is 90000072072.

It can be written as a sum of positive squares in only one way, i.e., 20051409609 + 6975590400 = 141603^2 + 83520^2 .

It is not a de Polignac number, because 27027000009 - 2⁹ = 27026999497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27027000079) 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 5 ways as a sum of consecutive naturals, for example, 1501499992 + ... + 1501500009.

Almost surely, 2^27027000009 is an apocalyptic number.

It is an amenable number.

27027000009 is a deficient number, since it is larger than the sum of its proper divisors (12012000017).

27027000009 is a wasteful number, since it uses less digits than its factorization.

27027000009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003000007 (or 3003000004 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The spelling of 27027000009 in words is "twenty-seven billion, twenty-seven million, nine", and thus it is an aban number and an uban number.