27749096213 has 2 divisors, whose sum is σ = 27749096214. Its totient is φ = 27749096212.

The previous prime is 27749096191. The next prime is 27749096317. The reversal of 27749096213 is 31269094772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14328568804 + 13420527409 = 119702^2 + 115847^2 .

It is a cyclic number.

It is not a de Polignac number, because 27749096213 - 2²⁰ = 27748047637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27749096113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13874548106 + 13874548107.

It is an arithmetic number, because the mean of its divisors is an integer number (13874548107).

Almost surely, 2^27749096213 is an apocalyptic number.

It is an amenable number.

27749096213 is a deficient number, since it is larger than the sum of its proper divisors (1).

27749096213 is an equidigital number, since it uses as much as digits as its factorization.

27749096213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1143072, while the sum is 50.

The spelling of 27749096213 in words is "twenty-seven billion, seven hundred forty-nine million, ninety-six thousand, two hundred thirteen".