12724762869 has 48 divisors (see below), whose sum is σ = 22635954432. Its totient is φ = 6707764224.

The previous prime is 12724762867. The next prime is 12724762889. The reversal of 12724762869 is 96826742721.

12724762869 is a `hidden beast` number, since 1 + 2 + 7 + 2 + 4 + 7 + 628 + 6 + 9 = 666.

It is not a de Polignac number, because 12724762869 - 2¹ = 12724762867 is a prime.

It is a super-2 number, since 2×12724762869² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12724762867) 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, 1648072 + ... + 1655774.

It is an arithmetic number, because the mean of its divisors is an integer number (471582384).

Almost surely, 2^12724762869 is an apocalyptic number.

It is an amenable number.

12724762869 is a deficient number, since it is larger than the sum of its proper divisors (9911191563).

12724762869 is a wasteful number, since it uses less digits than its factorization.

12724762869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9746 (or 9743 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The spelling of 12724762869 in words is "twelve billion, seven hundred twenty-four million, seven hundred sixty-two thousand, eight hundred sixty-nine".