12643844675 has 48 divisors (see below), whose sum is σ = 19726713600. Its totient is φ = 7809436800.

The previous prime is 12643844663. The next prime is 12643844677. The reversal of 12643844675 is 57644834621.

It is a de Polignac number, because none of the positive numbers 2^k-12643844675 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12643844677) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 179696 + ... + 239954.

It is an arithmetic number, because the mean of its divisors is an integer number (410973200).

Almost surely, 2^12643844675 is an apocalyptic number.

12643844675 is a deficient number, since it is larger than the sum of its proper divisors (7082868925).

12643844675 is a wasteful number, since it uses less digits than its factorization.

12643844675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60396 (or 60391 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 50.

The spelling of 12643844675 in words is "twelve billion, six hundred forty-three million, eight hundred forty-four thousand, six hundred seventy-five".