9918614272 has 144 divisors (see below), whose sum is σ = 23376165120. Its totient is φ = 4111478784.

The previous prime is 9918614267. The next prime is 9918614297. The reversal of 9918614272 is 2724168199.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15050679 + ... + 15051337.

It is an arithmetic number, because the mean of its divisors is an integer number (162334480).

Almost surely, 2^9918614272 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 9918614272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11688082560).

9918614272 is an abundant number, since it is smaller than the sum of its proper divisors (13457550848).

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

9918614272 is a wasteful number, since it uses less digits than its factorization.

9918614272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946 (or 932 counting only the distinct ones).

The product of its digits is 435456, while the sum is 49.

The square root of 9918614272 is about 99592.2400189894. The cubic root of 9918614272 is about 2148.5740876576.

The spelling of 9918614272 in words is "nine billion, nine hundred eighteen million, six hundred fourteen thousand, two hundred seventy-two".