9573138432 has 384 divisors, whose sum is σ = 32633284320. Its totient is φ = 2666004480.

The previous prime is 9573138383. The next prime is 9573138433. The reversal of 9573138432 is 2348313759.

9573138432 is a `hidden beast` number, since 9 + 573 + 1 + 38 + 43 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is not an unprimeable number, because it can be changed into a prime (9573138433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42172303 + ... + 42172529.

Almost surely, 2^9573138432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9573138432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16316642160).

9573138432 is an abundant number, since it is smaller than the sum of its proper divisors (23060145888).

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

9573138432 is a wasteful number, since it uses less digits than its factorization.

9573138432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287 (or 256 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 9573138432 is about 97842.4163233922. The cubic root of 9573138432 is about 2123.3330175105. Note that the first 3 decimals are identical.

The spelling of 9573138432 in words is "nine billion, five hundred seventy-three million, one hundred thirty-eight thousand, four hundred thirty-two".