9918480384 has 126 divisors (see below), whose sum is σ = 28680637076. Its totient is φ = 3303014400.

The previous prime is 9918480373. The next prime is 9918480389. The reversal of 9918480384 is 4830848199.

9918480384 is a `hidden beast` number, since 9 + 9 + 184 + 80 + 384 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 9918480384.

It is not an unprimeable number, because it can be changed into a prime (9918480389) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9436659 + ... + 9437709.

Almost surely, 2^9918480384 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 9918480384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14340318538).

9918480384 is an abundant number, since it is smaller than the sum of its proper divisors (18762156692).

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

9918480384 is an frugal number, since it uses more digits than its factorization.

9918480384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097 (or 1056 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The square root of 9918480384 is about 99591.5678358364. The cubic root of 9918480384 is about 2148.5644199905.

The spelling of 9918480384 in words is "nine billion, nine hundred eighteen million, four hundred eighty thousand, three hundred eighty-four".