12356545432 has 32 divisors (see below), whose sum is σ = 28885432320. Its totient is φ = 4814238240.

The previous prime is 12356545381. The next prime is 12356545441. The reversal of 12356545432 is 23454565321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10029048 + ... + 10030279.

It is an arithmetic number, because the mean of its divisors is an integer number (902669760).

Almost surely, 2^12356545432 is an apocalyptic number.

It is an amenable number.

12356545432 is an abundant number, since it is smaller than the sum of its proper divisors (16528886888).

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

12356545432 is a wasteful number, since it uses less digits than its factorization.

12356545432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20059351 (or 20059347 counting only the distinct ones).

The product of its digits is 432000, while the sum is 40.

The spelling of 12356545432 in words is "twelve billion, three hundred fifty-six million, five hundred forty-five thousand, four hundred thirty-two".