27353307689 has 2 divisors, whose sum is σ = 27353307690. Its totient is φ = 27353307688.

The previous prime is 27353307677. The next prime is 27353307697. The reversal of 27353307689 is 98670335372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16830651289 + 10522656400 = 129733^2 + 102580^2 .

It is a cyclic number.

It is not a de Polignac number, because 27353307689 - 2⁴ = 27353307673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27353307689.

It is not a weakly prime, because it can be changed into another prime (27353307659) 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, 13676653844 + 13676653845.

It is an arithmetic number, because the mean of its divisors is an integer number (13676653845).

Almost surely, 2^27353307689 is an apocalyptic number.

It is an amenable number.

27353307689 is a deficient number, since it is larger than the sum of its proper divisors (1).

27353307689 is an equidigital number, since it uses as much as digits as its factorization.

27353307689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5715360, while the sum is 53.

The spelling of 27353307689 in words is "twenty-seven billion, three hundred fifty-three million, three hundred seven thousand, six hundred eighty-nine".