Alternatively, follow every cardboard cult from RL or to a much lesser extent, in TES and just get worshiped. Get enough fanaticism and your godhood is assured. Given that TES runs on symbols... well, you do the math.
ah i see. that sorta makes sense actually. but i was looking for the actual immortality aspect.
That's the funny thing about TES, if you mimic a god hard enough and long enough, god-like powers get bestowed upon you.