43,744,839,742,282,591,947

Number
$43 \, 744 \, 839 \, 742 \, 282 \, 591 \, 947$ is:


 * $3 \times 283 \times 75 \, 767 \times 680 \, 047 \, 186 \, 109$


 * The $2$nd of $5$ integers which have the property that the sum of any $3$ of them is square: