12689472032 has 48 divisors (see below), whose sum is σ = 25366128480. Its totient is φ = 6247567872.

The previous prime is 12689472007. The next prime is 12689472041. The reversal of 12689472032 is 23027498621.

12689472032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12689472032² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1535303 + ... + 1543545.

It is an arithmetic number, because the mean of its divisors is an integer number (528461010).

Almost surely, 2^12689472032 is an apocalyptic number.

It is an amenable number.

12689472032 is a deficient number, since it is larger than the sum of its proper divisors (12676656448).

12689472032 is an equidigital number, since it uses as much as digits as its factorization.

12689472032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8985 (or 8977 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 44.

The spelling of 12689472032 in words is "twelve billion, six hundred eighty-nine million, four hundred seventy-two thousand, thirty-two".