999999000944 has 20 divisors (see below), whose sum is σ = 1938008452824. Its totient is φ = 499867787328.

The previous prime is 999999000943. The next prime is 999999000961. The reversal of 999999000944 is 449000999999.

It is a super-2 number, since 2×999999000944² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999999000943) 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 3 ways as a sum of consecutive naturals, for example, 8169422 + ... + 8290925.

Almost surely, 2^999999000944 is an apocalyptic number.

It is an amenable number.

999999000944 is a deficient number, since it is larger than the sum of its proper divisors (938009451880).

999999000944 is a wasteful number, since it uses less digits than its factorization.

999999000944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16464152 (or 16464146 counting only the distinct ones).

The product of its (nonzero) digits is 76527504, while the sum is 71.

The spelling of 999999000944 in words is "nine hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred forty-four", and thus it is an aban number.