8999423919 has 10 divisors (see below), whose sum is σ = 13443584000. Its totient is φ = 5999615892.

The previous prime is 8999423899. The next prime is 8999423941. The reversal of 8999423919 is 9193249998.

8999423919 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 8999423919 - 2⁵ = 8999423887 is a prime.

It is a super-2 number, since 2×8999423919² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8999423959) 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 9 ways as a sum of consecutive naturals, for example, 55551919 + ... + 55552080.

It is an arithmetic number, because the mean of its divisors is an integer number (1344358400).

Almost surely, 2^8999423919 is an apocalyptic number.

8999423919 is a deficient number, since it is larger than the sum of its proper divisors (4444160081).

8999423919 is a wasteful number, since it uses less digits than its factorization.

8999423919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111104011 (or 111104002 counting only the distinct ones).

The product of its digits is 11337408, while the sum is 63.

The square root of 8999423919 is about 94865.2935430023. The cubic root of 8999423919 is about 2080.0394407431.

The spelling of 8999423919 in words is "eight billion, nine hundred ninety-nine million, four hundred twenty-three thousand, nine hundred nineteen".