16851851850 has 48 divisors (see below), whose sum is σ = 42262205760. Its totient is φ = 4443331200.

The previous prime is 16851851837. The next prime is 16851851867. The reversal of 16851851850 is 5815815861.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 16851851850.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 617806 + ... + 644505.

It is an arithmetic number, because the mean of its divisors is an integer number (880462620).

Almost surely, 2^16851851850 is an apocalyptic number.

16851851850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16851851850 is an abundant number, since it is smaller than the sum of its proper divisors (25410353910).

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

16851851850 is a wasteful number, since it uses less digits than its factorization.

16851851850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262415 (or 1262410 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 48.

The spelling of 16851851850 in words is "sixteen billion, eight hundred fifty-one million, eight hundred fifty-one thousand, eight hundred fifty".