999992000018 has 8 divisors (see below), whose sum is σ = 1636350545520. Its totient is φ = 454541818180.

The previous prime is 999991999997. The next prime is 999992000039. The reversal of 999992000018 is 810000299999.

999992000018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (999991999997) and next prime (999992000039).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22727090888 + ... + 22727090931.

It is an arithmetic number, because the mean of its divisors is an integer number (204543818190).

Almost surely, 2^999992000018 is an apocalyptic number.

999992000018 is a deficient number, since it is larger than the sum of its proper divisors (636358545502).

999992000018 is a wasteful number, since it uses less digits than its factorization.

999992000018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45454181832.

The product of its (nonzero) digits is 944784, while the sum is 56.

The spelling of 999992000018 in words is "nine hundred ninety-nine billion, nine hundred ninety-two million, eighteen", and thus it is an aban number.