12504422432 has 12 divisors (see below), whose sum is σ = 24618081726. Its totient is φ = 6252211200.

The previous prime is 12504422423. The next prime is 12504422453. The reversal of 12504422432 is 23422440521.

It can be written as a sum of positive squares in only one way, i.e., 10016807056 + 2487615376 = 100084^2 + 49876^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12504422395 and 12504422404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195381569 + ... + 195381632.

Almost surely, 2^12504422432 is an apocalyptic number.

It is an amenable number.

12504422432 is a deficient number, since it is larger than the sum of its proper divisors (12113659294).

12504422432 is an equidigital number, since it uses as much as digits as its factorization.

12504422432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390763211 (or 390763203 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 12504422432 its reverse (23422440521), we get a palindrome (35926862953).

The spelling of 12504422432 in words is "twelve billion, five hundred four million, four hundred twenty-two thousand, four hundred thirty-two".