9471223728 has 100 divisors (see below), whose sum is σ = 28604405808. Its totient is φ = 3019800960.

The previous prime is 9471223717. The next prime is 9471223747. The reversal of 9471223728 is 8273221749.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 129063 + ... + 188678.

Almost surely, 2^9471223728 is an apocalyptic number.

It is an amenable number.

9471223728 is an abundant number, since it is smaller than the sum of its proper divisors (19133182080).

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

9471223728 is a wasteful number, since it uses less digits than its factorization.

9471223728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317784 (or 317769 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 9471223728 is about 97320.2123302246. The cubic root of 9471223728 is about 2115.7711870059.

The spelling of 9471223728 in words is "nine billion, four hundred seventy-one million, two hundred twenty-three thousand, seven hundred twenty-eight".