12744552193 has 4 divisors (see below), whose sum is σ = 13184019540. Its totient is φ = 12305084848.

The previous prime is 12744552187. The next prime is 12744552229. The reversal of 12744552193 is 39125544721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39125544721 = 139 ⋅281478739.

It can be written as a sum of positive squares in 2 ways, for example, as 8301396544 + 4443155649 = 91112^2 + 66657^2 .

It is a cyclic number.

It is not a de Polignac number, because 12744552193 - 2²⁹ = 12207681281 is a prime.

It is a super-2 number, since 2×12744552193² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12744552113) 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, 219733630 + ... + 219733687.

It is an arithmetic number, because the mean of its divisors is an integer number (3296004885).

Almost surely, 2^12744552193 is an apocalyptic number.

It is an amenable number.

12744552193 is a deficient number, since it is larger than the sum of its proper divisors (439467347).

12744552193 is an equidigital number, since it uses as much as digits as its factorization.

12744552193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439467346.

The product of its digits is 302400, while the sum is 43.

The spelling of 12744552193 in words is "twelve billion, seven hundred forty-four million, five hundred fifty-two thousand, one hundred ninety-three".