The multiplication of \( 40000000000000000000000000000000000000000000000000000000000000001 \) by \( 2 \) is:
\[ 80000000000000000000000000000000000000000000000000000000000000002 \]
So, the result is \( 80000000000000000000000000000000000000000000000000000000000000002 \).