12144254424 has 64 divisors (see below), whose sum is σ = 31108492800. Its totient is φ = 3948937344.

The previous prime is 12144254399. The next prime is 12144254429. The reversal of 12144254424 is 42445244121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12144254429) 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, 328762 + ... + 363830.

It is an arithmetic number, because the mean of its divisors is an integer number (486070200).

Almost surely, 2^12144254424 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 12144254424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15554246400).

12144254424 is an abundant number, since it is smaller than the sum of its proper divisors (18964238376).

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

12144254424 is a wasteful number, since it uses less digits than its factorization.

12144254424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35432 (or 35428 counting only the distinct ones).

The product of its digits is 40960, while the sum is 33.

Adding to 12144254424 its reverse (42445244121), we get a palindrome (54589498545).

The spelling of 12144254424 in words is "twelve billion, one hundred forty-four million, two hundred fifty-four thousand, four hundred twenty-four".