12543948800 has 144 divisors (see below), whose sum is σ = 31236594480. Its totient is φ = 4995809280.

The previous prime is 12543948793. The next prime is 12543948853. The reversal of 12543948800 is 884934521.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17254037 + ... + 17254763.

It is an arithmetic number, because the mean of its divisors is an integer number (216920795).

Almost surely, 2^12543948800 is an apocalyptic number.

12543948800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12543948800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15618297240).

12543948800 is an abundant number, since it is smaller than the sum of its proper divisors (18692645680).

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

12543948800 is an equidigital number, since it uses as much as digits as its factorization.

12543948800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096 (or 1071 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 12543948800 in words is "twelve billion, five hundred forty-three million, nine hundred forty-eight thousand, eight hundred".