18068906850 has 24 divisors (see below), whose sum is σ = 44810889360. Its totient is φ = 4818375120.

The previous prime is 18068906833. The next prime is 18068906887. The reversal of 18068906850 is 5860986081.

It is a junction number, because it is equal to n+sod(n) for n = 18068906793 and 18068906802.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60229540 + ... + 60229839.

It is an arithmetic number, because the mean of its divisors is an integer number (1867120390).

Almost surely, 2^18068906850 is an apocalyptic number.

18068906850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18068906850 is an abundant number, since it is smaller than the sum of its proper divisors (26741982510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18068906850 is a wasteful number, since it uses less digits than its factorization.

18068906850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120459394 (or 120459389 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 51.

The spelling of 18068906850 in words is "eighteen billion, sixty-eight million, nine hundred six thousand, eight hundred fifty".