9721485600 has 144 divisors (see below), whose sum is σ = 32116256928. Its totient is φ = 2553661440.

The previous prime is 9721485563. The next prime is 9721485619. The reversal of 9721485600 is 65841279.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130572 + ... + 191028.

It is an arithmetic number, because the mean of its divisors is an integer number (223029562).

Almost surely, 2^9721485600 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 9721485600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16058128464).

9721485600 is an abundant number, since it is smaller than the sum of its proper divisors (22394771328).

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

9721485600 is a wasteful number, since it uses less digits than its factorization.

9721485600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60547 (or 60534 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 9721485600 is about 98597.5942911388. The cubic root of 9721485600 is about 2134.2447039185.

The spelling of 9721485600 in words is "nine billion, seven hundred twenty-one million, four hundred eighty-five thousand, six hundred".