618,970,019,642,690,137,449,562,111

Number
$618 \, 970 \, 019 \, 642 \, 690 \, 137 \, 449 \, 562 \, 111$ is:


 * A prime number


 * The $10$th Mersenne prime after $3$, $7$, $31$, $127$, $8191$, $131 \, 071$, $524 \, 287$, $2 \, 147 \, 483 \, 647$, $2 \, 305 \, 843 \, 009 \, 213 \, 693 \, 951$:
 * $618 \, 970 \, 019 \, 642 \, 690 \, 137 \, 449 \, 562 \, 111 = 2^{89} - 1$