9918745199 has 32 divisors (see below), whose sum is σ = 11680204800. Its totient is φ = 8325646560.

The previous prime is 9918745153. The next prime is 9918745201. The reversal of 9918745199 is 9915478199.

9918745199 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9918745199 - 2²⁴ = 9901967983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9918715199) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 5562062 + ... + 5563844.

It is an arithmetic number, because the mean of its divisors is an integer number (365006400).

Almost surely, 2^9918745199 is an apocalyptic number.

9918745199 is a deficient number, since it is larger than the sum of its proper divisors (1761459601).

9918745199 is a wasteful number, since it uses less digits than its factorization.

9918745199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2475.

The product of its digits is 7348320, while the sum is 62.

The square root of 9918745199 is about 99592.8973320889. The cubic root of 9918745199 is about 2148.5835414352.

The spelling of 9918745199 in words is "nine billion, nine hundred eighteen million, seven hundred forty-five thousand, one hundred ninety-nine".