How many microliters is 3.75 * 10^9 kiloliters?

$1 \mu L$ $=$ ${10}^{-} 6$ $L$
Thus $\frac{3.75 \times {10}^{12} L}{{10}^{-} 6 L \mu {L}^{-} 1}$ $=$ $3.75 \times {10}^{18} \mu L$