27243549241 has 2 divisors, whose sum is σ = 27243549242. Its totient is φ = 27243549240.

The previous prime is 27243549181. The next prime is 27243549253. The reversal of 27243549241 is 14294534272.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22651454016 + 4592095225 = 150504^2 + 67765^2 .

It is a cyclic number.

It is not a de Polignac number, because 27243549241 - 2⁹ = 27243548729 is a prime.

It is not a weakly prime, because it can be changed into another prime (27243543241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13621774620 + 13621774621.

It is an arithmetic number, because the mean of its divisors is an integer number (13621774621).

Almost surely, 2^27243549241 is an apocalyptic number.

It is an amenable number.

27243549241 is a deficient number, since it is larger than the sum of its proper divisors (1).

27243549241 is an equidigital number, since it uses as much as digits as its factorization.

27243549241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 43.

The spelling of 27243549241 in words is "twenty-seven billion, two hundred forty-three million, five hundred forty-nine thousand, two hundred forty-one".