9918853243 has 16 divisors (see below), whose sum is σ = 10805707360. Its totient is φ = 9049936896.

The previous prime is 9918853237. The next prime is 9918853283. The reversal of 9918853243 is 3423588199.

It is not a de Polignac number, because 9918853243 - 2²⁵ = 9885298811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9918853283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1078621 + ... + 1087777.

It is an arithmetic number, because the mean of its divisors is an integer number (675356710).

Almost surely, 2^9918853243 is an apocalyptic number.

9918853243 is a deficient number, since it is larger than the sum of its proper divisors (886854117).

9918853243 is a wasteful number, since it uses less digits than its factorization.

9918853243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10126.

The product of its digits is 1866240, while the sum is 52.

The square root of 9918853243 is about 99593.4397588516. The cubic root of 9918853243 is about 2148.5913428494.

The spelling of 9918853243 in words is "nine billion, nine hundred eighteen million, eight hundred fifty-three thousand, two hundred forty-three".