12631322570 has 16 divisors (see below), whose sum is σ = 22743796680. Its totient is φ = 5050881024.

The previous prime is 12631322549. The next prime is 12631322581. The reversal of 12631322570 is 7522313621.

It can be written as a sum of positive squares in 4 ways, for example, as 12532578601 + 98743969 = 111949^2 + 9937^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173567 + ... + 235346.

Almost surely, 2^12631322570 is an apocalyptic number.

12631322570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12631322570 is a deficient number, since it is larger than the sum of its proper divisors (10112474110).

12631322570 is a wasteful number, since it uses less digits than its factorization.

12631322570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412009.

The product of its (nonzero) digits is 15120, while the sum is 32.

The spelling of 12631322570 in words is "twelve billion, six hundred thirty-one million, three hundred twenty-two thousand, five hundred seventy".