999999000068 has 12 divisors (see below), whose sum is σ = 1766988525120. Its totient is φ = 495145135752.

The previous prime is 999999000067. The next prime is 999999000083. The reversal of 999999000068 is 860000999999.

It is a junction number, because it is equal to n+sod(n) for n = 999998999971 and 999999000007.

It is not an unprimeable number, because it can be changed into a prime (999999000067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1213590608 + ... + 1213591431.

It is an arithmetic number, because the mean of its divisors is an integer number (147249043760).

Almost surely, 2^999999000068 is an apocalyptic number.

It is an amenable number.

999999000068 is a deficient number, since it is larger than the sum of its proper divisors (766989525052).

999999000068 is a wasteful number, since it uses less digits than its factorization.

999999000068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2427182146 (or 2427182144 counting only the distinct ones).

The product of its (nonzero) digits is 25509168, while the sum is 68.

The spelling of 999999000068 in words is "nine hundred ninety-nine billion, nine hundred ninety-nine million, sixty-eight", and thus it is an aban number.