12432120448 has 128 divisors (see below), whose sum is σ = 28595773440. Its totient is φ = 5328153600.

The previous prime is 12432120359. The next prime is 12432120457. The reversal of 12432120448 is 84402123421.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2296561 + ... + 2301967.

It is an arithmetic number, because the mean of its divisors is an integer number (223404480).

Almost surely, 2^12432120448 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 12432120448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14297886720).

12432120448 is an abundant number, since it is smaller than the sum of its proper divisors (16163652992).

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

12432120448 is a wasteful number, since it uses less digits than its factorization.

12432120448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5526 (or 5514 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 12432120448 its reverse (84402123421), we get a palindrome (96834243869).

The spelling of 12432120448 in words is "twelve billion, four hundred thirty-two million, one hundred twenty thousand, four hundred forty-eight".