27423240673 has 2 divisors, whose sum is σ = 27423240674. Its totient is φ = 27423240672.

The previous prime is 27423240667. The next prime is 27423240701. The reversal of 27423240673 is 37604232472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18416661264 + 9006579409 = 135708^2 + 94903^2 .

It is a cyclic number.

It is not a de Polignac number, because 27423240673 - 2⁵ = 27423240641 is a prime.

It is not a weakly prime, because it can be changed into another prime (27423240613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13711620336 + 13711620337.

It is an arithmetic number, because the mean of its divisors is an integer number (13711620337).

Almost surely, 2^27423240673 is an apocalyptic number.

It is an amenable number.

27423240673 is a deficient number, since it is larger than the sum of its proper divisors (1).

27423240673 is an equidigital number, since it uses as much as digits as its factorization.

27423240673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 40.

The spelling of 27423240673 in words is "twenty-seven billion, four hundred twenty-three million, two hundred forty thousand, six hundred seventy-three".