Eve wallets cannot handle numbers larger than 9223372036854775808 (which is approx. 2^63).

Step 1: Right click my name Emi Ibarazaki

Step 2: Select "Give Money" and paste in "9223372036854775808" (without the quotes) into BOTH fields.
The fields may change to something else when you do; this is normal.

Step 3: Click "OK" twice as fast as you can. If you don't, you'll get an error message and have to paste again.

Step 4: Your Eve client MAY crash when you do this. If it does not, you may need
to log out and back in to force the game to update your wallet number, which is now out of the game's bounds.

Step 5: Log back in and spend ISK!