12750138890 has 16 divisors (see below), whose sum is σ = 24300265032. Its totient is φ = 4800052224.

The previous prime is 12750138883. The next prime is 12750138967. The reversal of 12750138890 is 9883105721.

It can be written as a sum of positive squares in 4 ways, for example, as 11627955889 + 1122183001 = 107833^2 + 33499^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37500239 + ... + 37500578.

Almost surely, 2^12750138890 is an apocalyptic number.

12750138890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12750138890 is a deficient number, since it is larger than the sum of its proper divisors (11550126142).

12750138890 is a wasteful number, since it uses less digits than its factorization.

12750138890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75000841.

The product of its (nonzero) digits is 120960, while the sum is 44.

The spelling of 12750138890 in words is "twelve billion, seven hundred fifty million, one hundred thirty-eight thousand, eight hundred ninety".