27303074549 has 2 divisors, whose sum is σ = 27303074550. Its totient is φ = 27303074548.

The previous prime is 27303074507. The next prime is 27303074551. The reversal of 27303074549 is 94547030372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26547814225 + 755260324 = 162935^2 + 27482^2 .

It is a cyclic number.

It is not a de Polignac number, because 27303074549 - 2²⁰ = 27302025973 is a prime.

Together with 27303074551, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27303070549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13651537274 + 13651537275.

It is an arithmetic number, because the mean of its divisors is an integer number (13651537275).

Almost surely, 2^27303074549 is an apocalyptic number.

It is an amenable number.

27303074549 is a deficient number, since it is larger than the sum of its proper divisors (1).

27303074549 is an equidigital number, since it uses as much as digits as its factorization.

27303074549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 635040, while the sum is 44.

The spelling of 27303074549 in words is "twenty-seven billion, three hundred three million, seventy-four thousand, five hundred forty-nine".