27447610493 has 2 divisors, whose sum is σ = 27447610494. Its totient is φ = 27447610492.

The previous prime is 27447610439. The next prime is 27447610523. The reversal of 27447610493 is 39401674472.

Together with previous prime (27447610439) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15561814009 + 11885796484 = 124747^2 + 109022^2 .

It is a cyclic number.

It is not a de Polignac number, because 27447610493 - 2¹⁸ = 27447348349 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27447610093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13723805246 + 13723805247.

It is an arithmetic number, because the mean of its divisors is an integer number (13723805247).

Almost surely, 2^27447610493 is an apocalyptic number.

It is an amenable number.

27447610493 is a deficient number, since it is larger than the sum of its proper divisors (1).

27447610493 is an equidigital number, since it uses as much as digits as its factorization.

27447610493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1016064, while the sum is 47.

The spelling of 27447610493 in words is "twenty-seven billion, four hundred forty-seven million, six hundred ten thousand, four hundred ninety-three".