9421472172 has 48 divisors (see below), whose sum is σ = 25708212992. Its totient is φ = 2629247040.

The previous prime is 9421472117. The next prime is 9421472191. The reversal of 9421472172 is 2712741249.

It is a self number, because there is not a number n which added to its sum of digits gives 9421472172.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1300579 + ... + 1307802.

Almost surely, 2^9421472172 is an apocalyptic number.

It is an amenable number.

9421472172 is an abundant number, since it is smaller than the sum of its proper divisors (16286740820).

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

9421472172 is a wasteful number, since it uses less digits than its factorization.

9421472172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2608438 (or 2608436 counting only the distinct ones).

The product of its digits is 56448, while the sum is 39.

The square root of 9421472172 is about 97064.2682556254. The cubic root of 9421472172 is about 2112.0600241564.

The spelling of 9421472172 in words is "nine billion, four hundred twenty-one million, four hundred seventy-two thousand, one hundred seventy-two".