198326058193 has 2 divisors, whose sum is σ = 198326058194. Its totient is φ = 198326058192.

The previous prime is 198326058187. The next prime is 198326058221. The reversal of 198326058193 is 391850623891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161244008704 + 37082049489 = 401552^2 + 192567^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198326058193 is a prime.

It is not a weakly prime, because it can be changed into another prime (198326058103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99163029096 + 99163029097.

It is an arithmetic number, because the mean of its divisors is an integer number (99163029097).

Almost surely, 2^198326058193 is an apocalyptic number.

It is an amenable number.

198326058193 is a deficient number, since it is larger than the sum of its proper divisors (1).

198326058193 is an equidigital number, since it uses as much as digits as its factorization.

198326058193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The spelling of 198326058193 in words is "one hundred ninety-eight billion, three hundred twenty-six million, fifty-eight thousand, one hundred ninety-three".