1. Facebook has more monthly users (1.28 billion) than India—the world's second-most populous country—has people (1.24 billion).
2. Apple is sitting on $151 billion, which is enough cash to purchase nearly eight WhatsApps. Facebook scooped up the mobile messaging app for $19 billion last quarter.
3. At 1.28 billion, Facebook has more monthly active users than WhatsApp (500 million), Twitter (255 million) and Instagram (200 million)—combined. The social giant spent $20 billion over the last two years on WhatsApp and Instagram.