12529032432 has 80 divisors (see below), whose sum is σ = 37127242752. Its totient is φ = 3566488320.

The previous prime is 12529032401. The next prime is 12529032433. The reversal of 12529032432 is 23423092521.

It is a junction number, because it is equal to n+sod(n) for n = 12529032393 and 12529032402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12529032433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22258 + ... + 159854.

Almost surely, 2^12529032432 is an apocalyptic number.

12529032432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12529032432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18563621376).

12529032432 is an abundant number, since it is smaller than the sum of its proper divisors (24598210320).

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

12529032432 is a wasteful number, since it uses less digits than its factorization.

12529032432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137886 (or 137880 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 12529032432 in words is "twelve billion, five hundred twenty-nine million, thirty-two thousand, four hundred thirty-two".