12872724436 has 24 divisors (see below), whose sum is σ = 26465602464. Its totient is φ = 5401142880.

The previous prime is 12872724419. The next prime is 12872724437. The reversal of 12872724436 is 63442727821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12872724437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11251810 + ... + 11252953.

It is an arithmetic number, because the mean of its divisors is an integer number (1102733436).

Almost surely, 2^12872724436 is an apocalyptic number.

It is an amenable number.

12872724436 is an abundant number, since it is smaller than the sum of its proper divisors (13592878028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12872724436 is a wasteful number, since it uses less digits than its factorization.

12872724436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22504791 (or 22504789 counting only the distinct ones).

The product of its digits is 903168, while the sum is 46.

The spelling of 12872724436 in words is "twelve billion, eight hundred seventy-two million, seven hundred twenty-four thousand, four hundred thirty-six".