According to the CDC FAQ, you are off by a bit.
9 Days on a surface, longer if the environment is cool, or humid. This is a virus, not a bacteria - So, consider a cruise ship's or aircraft ventilation system, or fabric seats. Add to this the fact that this is likely a weaponized strain - with a far higher fatality rate than China is letting on. The 36 yr old MD who alerted to world to this, died of this disease. Satellite images show unusally high levels of Sulfur dioxide, indicative that thousands of bodies are being cremated DAILY.