27548223893 has 2 divisors, whose sum is σ = 27548223894. Its totient is φ = 27548223892.

The previous prime is 27548223889. The next prime is 27548223917. The reversal of 27548223893 is 39832284572.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16885183249 + 10663040644 = 129943^2 + 103262^2 .

It is a cyclic number.

It is not a de Polignac number, because 27548223893 - 2² = 27548223889 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 (27548223853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13774111946 + 13774111947.

It is an arithmetic number, because the mean of its divisors is an integer number (13774111947).

Almost surely, 2^27548223893 is an apocalyptic number.

It is an amenable number.

27548223893 is a deficient number, since it is larger than the sum of its proper divisors (1).

27548223893 is an equidigital number, since it uses as much as digits as its factorization.

27548223893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5806080, while the sum is 53.

The spelling of 27548223893 in words is "twenty-seven billion, five hundred forty-eight million, two hundred twenty-three thousand, eight hundred ninety-three".