16851836850 has 48 divisors (see below), whose sum is σ = 42922098048. Its totient is φ = 4372367040.

The previous prime is 16851836819. The next prime is 16851836861. The reversal of 16851836850 is 5863815861.

It is a junction number, because it is equal to n+sod(n) for n = 16851836793 and 16851836802.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1512634 + ... + 1523733.

It is an arithmetic number, because the mean of its divisors is an integer number (894210376).

Almost surely, 2^16851836850 is an apocalyptic number.

16851836850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16851836850 is an abundant number, since it is smaller than the sum of its proper divisors (26070261198).

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

16851836850 is a wasteful number, since it uses less digits than its factorization.

16851836850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3036419 (or 3036414 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 51.

The spelling of 16851836850 in words is "sixteen billion, eight hundred fifty-one million, eight hundred thirty-six thousand, eight hundred fifty".