12544013251432 has 64 divisors (see below), whose sum is σ = 25492464748800. Its totient is φ = 5752245507840.

The previous prime is 12544013251387. The next prime is 12544013251481. The reversal of 12544013251432 is 23415231044521.

It is a junction number, because it is equal to n+sod(n) for n = 12544013251391 and 12544013251400.

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, 372441169 + ... + 372474847.

It is an arithmetic number, because the mean of its divisors is an integer number (398319761700).

Almost surely, 2^{12544013251432} 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 12544013251432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12746232374400).

12544013251432 is an abundant number, since it is smaller than the sum of its proper divisors (12948451497368).

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

12544013251432 is a wasteful number, since it uses less digits than its factorization.

12544013251432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56666 (or 56662 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 12544013251432 its reverse (23415231044521), we get a palindrome (35959244295953).

The spelling of 12544013251432 in words is "twelve trillion, five hundred forty-four billion, thirteen million, two hundred fifty-one thousand, four hundred thirty-two".