196746360689 has 2 divisors, whose sum is σ = 196746360690. Its totient is φ = 196746360688.

The previous prime is 196746360673. The next prime is 196746360691. The reversal of 196746360689 is 986063647691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 172716710464 + 24029650225 = 415592^2 + 155015^2 .

It is a cyclic number.

It is not a de Polignac number, because 196746360689 - 2⁴ = 196746360673 is a prime.

Together with 196746360691, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (196746360649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98373180344 + 98373180345.

It is an arithmetic number, because the mean of its divisors is an integer number (98373180345).

Almost surely, 2^196746360689 is an apocalyptic number.

It is an amenable number.

196746360689 is a deficient number, since it is larger than the sum of its proper divisors (1).

196746360689 is an equidigital number, since it uses as much as digits as its factorization.

196746360689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70543872, while the sum is 65.

The spelling of 196746360689 in words is "one hundred ninety-six billion, seven hundred forty-six million, three hundred sixty thousand, six hundred eighty-nine".