12824118729 has 6 divisors (see below), whose sum is σ = 18523727066. Its totient is φ = 8549412480.

The previous prime is 12824118709. The next prime is 12824118731. The reversal of 12824118729 is 92781142821.

It can be written as a sum of positive squares in only one way, i.e., 12448534329 + 375584400 = 111573^2 + 19380^2 .

It is not a de Polignac number, because 12824118729 - 2⁸ = 12824118473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12824118709) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 712451032 + ... + 712451049.

Almost surely, 2^12824118729 is an apocalyptic number.

It is an amenable number.

12824118729 is a deficient number, since it is larger than the sum of its proper divisors (5699608337).

12824118729 is a wasteful number, since it uses less digits than its factorization.

12824118729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424902087 (or 1424902084 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The spelling of 12824118729 in words is "twelve billion, eight hundred twenty-four million, one hundred eighteen thousand, seven hundred twenty-nine".