27374240653 has 2 divisors, whose sum is σ = 27374240654. Its totient is φ = 27374240652.

The previous prime is 27374240629. The next prime is 27374240669. The reversal of 27374240653 is 35604247372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26974120644 + 400120009 = 164238^2 + 20003^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27374240653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27374240683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13687120326 + 13687120327.

It is an arithmetic number, because the mean of its divisors is an integer number (13687120327).

Almost surely, 2^27374240653 is an apocalyptic number.

It is an amenable number.

27374240653 is a deficient number, since it is larger than the sum of its proper divisors (1).

27374240653 is an equidigital number, since it uses as much as digits as its factorization.

27374240653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 846720, while the sum is 43.

The spelling of 27374240653 in words is "twenty-seven billion, three hundred seventy-four million, two hundred forty thousand, six hundred fifty-three".