27204364009 has 2 divisors, whose sum is σ = 27204364010. Its totient is φ = 27204364008.

The previous prime is 27204364003. The next prime is 27204364021. The reversal of 27204364009 is 90046340272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27086576400 + 117787609 = 164580^2 + 10853^2 .

It is a cyclic number.

It is not a de Polignac number, because 27204364009 - 2⁷ = 27204363881 is a prime.

It is a super-2 number, since 2×27204364009² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27204364003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13602182004 + 13602182005.

It is an arithmetic number, because the mean of its divisors is an integer number (13602182005).

Almost surely, 2^27204364009 is an apocalyptic number.

It is an amenable number.

27204364009 is a deficient number, since it is larger than the sum of its proper divisors (1).

27204364009 is an equidigital number, since it uses as much as digits as its factorization.

27204364009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 37.

The spelling of 27204364009 in words is "twenty-seven billion, two hundred four million, three hundred sixty-four thousand, nine".