12635473432 has 16 divisors (see below), whose sum is σ = 23848412400. Its totient is φ = 6275896800.

The previous prime is 12635473349. The next prime is 12635473441. The reversal of 12635473432 is 23437453621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5228707 + ... + 5231122.

It is an arithmetic number, because the mean of its divisors is an integer number (1490525775).

Almost surely, 2^12635473432 is an apocalyptic number.

It is an amenable number.

12635473432 is a deficient number, since it is larger than the sum of its proper divisors (11212938968).

12635473432 is a wasteful number, since it uses less digits than its factorization.

12635473432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10459986 (or 10459982 counting only the distinct ones).

The product of its digits is 362880, while the sum is 40.

The spelling of 12635473432 in words is "twelve billion, six hundred thirty-five million, four hundred seventy-three thousand, four hundred thirty-two".