9638490576 has 320 divisors, whose sum is σ = 31025514240. Its totient is φ = 2537472000.

The previous prime is 9638490559. The next prime is 9638490577. The reversal of 9638490576 is 6750948369.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9638490577) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8160706 + ... + 8161886.

It is an arithmetic number, because the mean of its divisors is an integer number (96954732).

Almost surely, 2^9638490576 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 9638490576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15512757120).

9638490576 is an abundant number, since it is smaller than the sum of its proper divisors (21387023664).

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

9638490576 is a wasteful number, since it uses less digits than its factorization.

9638490576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286 (or 1280 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 57.

The square root of 9638490576 is about 98175.8146184690. The cubic root of 9638490576 is about 2128.1537909185.

The spelling of 9638490576 in words is "nine billion, six hundred thirty-eight million, four hundred ninety thousand, five hundred seventy-six".