In total, how many words are there using this list?There are 30 entries.
How many characters does the largest word on this list contain?'Photochemigraphy' contains 16 characters, and is the longest word that's possible to make from this combination.
Is there any word on this page that jumps out as the most popular?A common word for the combination you requested is 'oligarchy'.
What word from this list is the most unusual?By far the most interesting word from this list is 'chemigraphy'. The definition of 'chemigraphy' is as follows: "Any mechanical engraving process depending upon chemical action; specif., a process of zinc etching not employing photography. -- Chem`i*graph"ic (#), a.".