27968685229 has 2 divisors, whose sum is σ = 27968685230. Its totient is φ = 27968685228.

The previous prime is 27968685191. The next prime is 27968685319. The reversal of 27968685229 is 92258686972.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27965872900 + 2812329 = 167230^2 + 1677^2 .

It is a cyclic number.

It is not a de Polignac number, because 27968685229 - 2¹⁵ = 27968652461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27968685529) 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, 13984342614 + 13984342615.

It is an arithmetic number, because the mean of its divisors is an integer number (13984342615).

Almost surely, 2^27968685229 is an apocalyptic number.

It is an amenable number.

27968685229 is a deficient number, since it is larger than the sum of its proper divisors (1).

27968685229 is an equidigital number, since it uses as much as digits as its factorization.

27968685229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52254720, while the sum is 64.

The spelling of 27968685229 in words is "twenty-seven billion, nine hundred sixty-eight million, six hundred eighty-five thousand, two hundred twenty-nine".