9728674920 has 192 divisors, whose sum is σ = 32574597120. Its totient is φ = 2516285952.

The previous prime is 9728674889. The next prime is 9728674931. The reversal of 9728674920 is 294768279.

9728674920 is a `hidden beast` number, since 9 + 72 + 86 + 7 + 492 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5100607 + ... + 5102513.

It is an arithmetic number, because the mean of its divisors is an integer number (169659360).

Almost surely, 2^9728674920 is an apocalyptic number.

9728674920 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9728674920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16287298560).

9728674920 is an abundant number, since it is smaller than the sum of its proper divisors (22845922200).

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

9728674920 is a wasteful number, since it uses less digits than its factorization.

9728674920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344 (or 2337 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The square root of 9728674920 is about 98634.0454407098. The cubic root of 9728674920 is about 2134.7706861923.

The spelling of 9728674920 in words is "nine billion, seven hundred twenty-eight million, six hundred seventy-four thousand, nine hundred twenty".