9834420918 has 32 divisors (see below), whose sum is σ = 22485093120. Its totient is φ = 2809032480.

The previous prime is 9834420887. The next prime is 9834420931. The reversal of 9834420918 is 8190244389.

9834420918 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124213 + ... + 187343.

It is an arithmetic number, because the mean of its divisors is an integer number (702659160).

Almost surely, 2^9834420918 is an apocalyptic number.

9834420918 is an abundant number, since it is smaller than the sum of its proper divisors (12650672202).

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

9834420918 is a wasteful number, since it uses less digits than its factorization.

9834420918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66852.

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 9834420918 is about 99168.6488664638. The cubic root of 9834420918 is about 2142.4774723900.

The spelling of 9834420918 in words is "nine billion, eight hundred thirty-four million, four hundred twenty thousand, nine hundred eighteen".