I forgot my password again! I changed it a few days ago but already forgot!
What is my phone's password this month?
Hint #1:
My passwords do tend to be fairly long, as mentioned in the comments.
Hint #2:
The number itself may not have been on the moon, but maybe something it shares a trait with.
Answer
Your lock code is
115132219018763992565095597973971522401
The reason
Neil Armstrong was the first man on moon. Armstrong number is an n-digit number in which sum of n-th power of each digit is equal to the number itself. E.g. - 371 = 3^3 + 7^3 + 1^3. (3 digit number so power of 3).
Using this rationale, we find that
115132219018763992565095597973971522401 is the largest known armstrong number as per this and has 39 digits.
No wonder you forgot it!
Bonus reading - wikipedia
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