12643608570 has 16 divisors (see below), whose sum is σ = 30344660640. Its totient is φ = 3371628944.

The previous prime is 12643608569. The next prime is 12643608589. The reversal of 12643608570 is 7580634621.

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, 210726780 + ... + 210726839.

It is an arithmetic number, because the mean of its divisors is an integer number (1896541290).

Almost surely, 2^12643608570 is an apocalyptic number.

12643608570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12643608570 is an abundant number, since it is smaller than the sum of its proper divisors (17701052070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12643608570 is a wasteful number, since it uses less digits than its factorization.

12643608570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421453629.

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 12643608570 in words is "twelve billion, six hundred forty-three million, six hundred eight thousand, five hundred seventy".