12651824536 has 64 divisors (see below), whose sum is σ = 26127360000. Its totient is φ = 5707767936.

The previous prime is 12651824491. The next prime is 12651824539. The reversal of 12651824536 is 63542815621.

It is a junction number, because it is equal to n+sod(n) for n = 12651824492 and 12651824501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12651824539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1092585 + ... + 1104103.

It is an arithmetic number, because the mean of its divisors is an integer number (408240000).

Almost surely, 2^12651824536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12651824536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13063680000).

12651824536 is an abundant number, since it is smaller than the sum of its proper divisors (13475535464).

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

12651824536 is a wasteful number, since it uses less digits than its factorization.

12651824536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11776 (or 11772 counting only the distinct ones).

The product of its digits is 345600, while the sum is 43.

The spelling of 12651824536 in words is "twelve billion, six hundred fifty-one million, eight hundred twenty-four thousand, five hundred thirty-six".