26,072,323,311,568,661,931

Number
$26 \, 072 \, 323 \, 311 \, 568 \, 661 \, 931$ is:


 * $3 \times 577 \times 14 \, 327 \times 1 \, 051 \, 301 \, 790 \, 863$


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