16850345728 has 18 divisors (see below), whose sum is σ = 33634870304. Its totient is φ = 8425172736.

The previous prime is 16850345689. The next prime is 16850345747. The reversal of 16850345728 is 82754305861.

It is a happy number.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 32910576 + ... + 32911087.

Almost surely, 2^16850345728 is an apocalyptic number.

It is an amenable number.

16850345728 is a deficient number, since it is larger than the sum of its proper divisors (16784524576).

16850345728 is an frugal number, since it uses more digits than its factorization.

16850345728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65821679 (or 65821665 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 16850345728 in words is "sixteen billion, eight hundred fifty million, three hundred forty-five thousand, seven hundred twenty-eight".