Luna Moth (dying?)

hey guys, this luna moth has been on my screen door for at least a full day, possibly more since i just noticed it yesterday. it was responding to stimuli at first like when i flicked the screen by flapping its wings a bit but now it does not seem to be responding at all. i even just went outside and touched it gently but got nothing. is this a pretty good sign that it has died? also, just wondering if anyone can tell, is it a male or female? im pretty curious to know :)