The fugagoogolplex is equal to \( ext{googolplex} \downarrow\downarrow ext{googolplex}\) = googolplexgoogolplex(googolplex-1), or a googolplex raised to the googolplexth power googolplex-1 times. It is comparable to googoltriplex, but only on a googological scale - while a googoltriplex is 1 followed by a googolduplex zeros, one would have to raise a a googolduplex to the power of approximately a googol to get the number of digits in a fugagoogolplex.