16853718549 has 8 divisors (see below), whose sum is σ = 22994220832. Its totient is φ = 10974514320.

The previous prime is 16853718529. The next prime is 16853718551. The reversal of 16853718549 is 94581735861.

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

It is not a de Polignac number, because 16853718549 - 2¹⁶ = 16853653013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16853718529) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 65324362 + ... + 65324619.

It is an arithmetic number, because the mean of its divisors is an integer number (2874277604).

Almost surely, 2^16853718549 is an apocalyptic number.

It is an amenable number.

16853718549 is a deficient number, since it is larger than the sum of its proper divisors (6140502283).

16853718549 is a wasteful number, since it uses less digits than its factorization.

16853718549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130649027.

The product of its digits is 7257600, while the sum is 57.

The spelling of 16853718549 in words is "sixteen billion, eight hundred fifty-three million, seven hundred eighteen thousand, five hundred forty-nine".