zero
figuring you meant are, not or, 5.
1234567890 + 4563217890 = 5797785780
456789 * 1234567890 = 5.63937032 × 1014
1,000,460 with remainder 250.
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1234567890
1234567890
Just 1.
1234567890
1234567890
1234567890 billon
112345678890 1234567809 1234567890 12345678990 123467890 1234567890 1234567890
2469135780
zero
1234567890$$$$$$