12195471832 has 32 divisors (see below), whose sum is σ = 24774670800. Its totient is φ = 5605576704.

The previous prime is 12195471823. The next prime is 12195471857. The reversal of 12195471832 is 23817459121.

It is a Harshad number since it is a multiple of its sum of digits (43).

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, 1036857 + ... + 1048552.

Almost surely, 2^12195471832 is an apocalyptic number.

It is an amenable number.

12195471832 is an abundant number, since it is smaller than the sum of its proper divisors (12579198968).

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

12195471832 is a wasteful number, since it uses less digits than its factorization.

12195471832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2085475 (or 2085471 counting only the distinct ones).

The product of its digits is 120960, while the sum is 43.

The spelling of 12195471832 in words is "twelve billion, one hundred ninety-five million, four hundred seventy-one thousand, eight hundred thirty-two".