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The four largest countries in the world cover about nine percent of the earth’s surface. In total area (land and water), Russia (17,075,200 square kilometers) is the largest country in the world, followed by Canada (9,984,670 sq km), the United States (9,629,091 sq km) and China (9,596,960 sq km). China has the longest land borders, sharing 22,147.34 kilometers of borders with 16 countries. Russia is second, at 19,900 kilometers shared with 14 countries. The United States is fifth, with 12,034 kilometers of borders with Canada and Mexico. Canada, ninth, has 8,893 kilometers of land borders, all shared with the United States. Canada is tops in coastline length, with 202,080 kilometers, more than Russia (37,653 km), the United States (19,924 km) and China (14,500) combined. |