27493413289 has 2 divisors, whose sum is σ = 27493413290. Its totient is φ = 27493413288.

The previous prime is 27493413287. The next prime is 27493413379. The reversal of 27493413289 is 98231439472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17634512025 + 9858901264 = 132795^2 + 99292^2 .

It is a cyclic number.

It is not a de Polignac number, because 27493413289 - 2¹ = 27493413287 is a prime.

Together with 27493413287, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (27493413287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13746706644 + 13746706645.

It is an arithmetic number, because the mean of its divisors is an integer number (13746706645).

Almost surely, 2^27493413289 is an apocalyptic number.

It is an amenable number.

27493413289 is a deficient number, since it is larger than the sum of its proper divisors (1).

27493413289 is an equidigital number, since it uses as much as digits as its factorization.

27493413289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 52.

The spelling of 27493413289 in words is "twenty-seven billion, four hundred ninety-three million, four hundred thirteen thousand, two hundred eighty-nine".