12724797443 has 4 divisors (see below), whose sum is σ = 12725904048. Its totient is φ = 12723690840.

The previous prime is 12724797431. The next prime is 12724797461. The reversal of 12724797443 is 34479742721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12724797443 - 2⁴ = 12724797427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12724797391 and 12724797400.

It is not an unprimeable number, because it can be changed into a prime (12724797473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 535871 + ... + 559112.

It is an arithmetic number, because the mean of its divisors is an integer number (3181476012).

Almost surely, 2^12724797443 is an apocalyptic number.

12724797443 is a deficient number, since it is larger than the sum of its proper divisors (1106605).

12724797443 is a wasteful number, since it uses less digits than its factorization.

12724797443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106604.

The product of its digits is 2370816, while the sum is 50.

The spelling of 12724797443 in words is "twelve billion, seven hundred twenty-four million, seven hundred ninety-seven thousand, four hundred forty-three".