9872384520 has 64 divisors (see below), whose sum is σ = 29922520320. Its totient is φ = 2605492224.

The previous prime is 9872384513. The next prime is 9872384539. The reversal of 9872384520 is 254832789.

It is a super-2 number, since 2×9872384520² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9872384520.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412432 + ... + 435711.

It is an arithmetic number, because the mean of its divisors is an integer number (467539380).

Almost surely, 2^9872384520 is an apocalyptic number.

It is an amenable number.

9872384520 is an abundant number, since it is smaller than the sum of its proper divisors (20050135800).

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

9872384520 is a wasteful number, since it uses less digits than its factorization.

9872384520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848254 (or 848250 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The square root of 9872384520 is about 99359.8737921904. The cubic root of 9872384520 is about 2145.2307856942.

The spelling of 9872384520 in words is "nine billion, eight hundred seventy-two million, three hundred eighty-four thousand, five hundred twenty".