9918250198 has 16 divisors (see below), whose sum is σ = 14969064096. Its totient is φ = 4928584320.

The previous prime is 9918250171. The next prime is 9918250207. The reversal of 9918250198 is 8910528199.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1527118 + ... + 1533598.

It is an arithmetic number, because the mean of its divisors is an integer number (935566506).

Almost surely, 2^9918250198 is an apocalyptic number.

9918250198 is a deficient number, since it is larger than the sum of its proper divisors (5050813898).

9918250198 is a wasteful number, since it uses less digits than its factorization.

9918250198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11079.

The product of its (nonzero) digits is 466560, while the sum is 52.

The square root of 9918250198 is about 99590.4121790848. The cubic root of 9918250198 is about 2148.5477987187.

The spelling of 9918250198 in words is "nine billion, nine hundred eighteen million, two hundred fifty thousand, one hundred ninety-eight".