12432442506 has 32 divisors (see below), whose sum is σ = 28060689600. Its totient is φ = 3637495680.

The previous prime is 12432442489. The next prime is 12432442531. The reversal of 12432442506 is 60524423421.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3245851 + ... + 3249678.

It is an arithmetic number, because the mean of its divisors is an integer number (876896550).

Almost surely, 2^12432442506 is an apocalyptic number.

12432442506 is an abundant number, since it is smaller than the sum of its proper divisors (15628247094).

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

12432442506 is a wasteful number, since it uses less digits than its factorization.

12432442506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6495574.

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 12432442506 its reverse (60524423421), we get a palindrome (72956865927).

The spelling of 12432442506 in words is "twelve billion, four hundred thirty-two million, four hundred forty-two thousand, five hundred six".