12682743621 has 16 divisors (see below), whose sum is σ = 17052672000. Its totient is φ = 8384061168.

The previous prime is 12682743613. The next prime is 12682743643. The reversal of 12682743621 is 12634728621.

It is not a de Polignac number, because 12682743621 - 2³ = 12682743613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12682743611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 791790 + ... + 807648.

It is an arithmetic number, because the mean of its divisors is an integer number (1065792000).

Almost surely, 2^12682743621 is an apocalyptic number.

It is an amenable number.

12682743621 is a deficient number, since it is larger than the sum of its proper divisors (4369928379).

12682743621 is a wasteful number, since it uses less digits than its factorization.

12682743621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18088.

The product of its digits is 193536, while the sum is 42.

The spelling of 12682743621 in words is "twelve billion, six hundred eighty-two million, seven hundred forty-three thousand, six hundred twenty-one".