*checks to make sure these are correct*
GAH! That last decimal place I typed shouldn't be a 6! It should be a 4, then a 6!
So, despite my grapheme→color synesthesia, I have yet to memorize pi to more than 18 decimal places (19 digits altogether). Sad. :(
I did know that the 8 before it was the beginning of a string of six nonzero even digits and that no two adjacent digits in that string are identical, though, so I guess I can say I have log(1018 × (10/3)5) (because there were 3 possibilities for each of the digits after the 8) = log(411,522,633,744,855,967,078.18930041
EDIT: Thanks to the Nintendo 64, I think I finally figured out a way to remember the last two of those even digits I was talking about! :D