27361543049 has 2 divisors, whose sum is σ = 27361543050. Its totient is φ = 27361543048.

The previous prime is 27361543039. The next prime is 27361543057. The reversal of 27361543049 is 94034516372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26319221824 + 1042321225 = 162232^2 + 32285^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27361543049 is a prime.

It is not a weakly prime, because it can be changed into another prime (27361543019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13680771524 + 13680771525.

It is an arithmetic number, because the mean of its divisors is an integer number (13680771525).

Almost surely, 2^27361543049 is an apocalyptic number.

It is an amenable number.

27361543049 is a deficient number, since it is larger than the sum of its proper divisors (1).

27361543049 is an equidigital number, since it uses as much as digits as its factorization.

27361543049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 27361543049 in words is "twenty-seven billion, three hundred sixty-one million, five hundred forty-three thousand, forty-nine".