12454043544 has 224 divisors, whose sum is σ = 37396339200. Its totient is φ = 3875014080.

The previous prime is 12454043513. The next prime is 12454043551. The reversal of 12454043544 is 44534045421.

12454043544 is a `hidden beast` number, since 1 + 24 + 54 + 0 + 43 + 544 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 12454043499 and 12454043508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 7866577 + ... + 7868159.

Almost surely, 2^12454043544 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 12454043544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18698169600).

12454043544 is an abundant number, since it is smaller than the sum of its proper divisors (24942295656).

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

12454043544 is a wasteful number, since it uses less digits than its factorization.

12454043544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1697 (or 1678 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

Adding to 12454043544 its reverse (44534045421), we get a palindrome (56988088965).

The spelling of 12454043544 in words is "twelve billion, four hundred fifty-four million, forty-three thousand, five hundred forty-four".