12744453120 has 704 divisors, whose sum is σ = 49521024000. Its totient is φ = 2793799680.

The previous prime is 12744453101. The next prime is 12744453131. The reversal of 12744453120 is 2135444721.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 216007651 + ... + 216007709.

Almost surely, 2^12744453120 is an apocalyptic number.

12744453120 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 12744453120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24760512000).

12744453120 is an abundant number, since it is smaller than the sum of its proper divisors (36776570880).

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

12744453120 is an equidigital number, since it uses as much as digits as its factorization.

12744453120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

Adding to 12744453120 its reverse (2135444721), we get a palindrome (14879897841).

The spelling of 12744453120 in words is "twelve billion, seven hundred forty-four million, four hundred fifty-three thousand, one hundred twenty".