There are 19 angels guarding hell, and the number 19 is a stumbling block for disbelievers.
Above it are nineteen. We have appointed only angels to be wardens of the Fire, and their number have We made to be a stumbling-block for those who disbelieve. Quran 74:30-31
The Basmala (In the name of Allah) consists of 19 Arabic letters.
And the number of surahs in the Quran is 114, which is 19 times 6.
So there you have it. 19 is Allah's favorite number.
Here is Dr. Shabir Ally's explanation.
