16853685017 has 8 divisors (see below), whose sum is σ = 18174894024. Its totient is φ = 15536014848.

The previous prime is 16853685001. The next prime is 16853685067. The reversal of 16853685017 is 71058635861.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9389416201 + 7464268816 = 96899^2 + 86396^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 16853685017 - 2⁴ = 16853685001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16853685067) 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, 874808 + ... + 893865.

It is an arithmetic number, because the mean of its divisors is an integer number (2271861753).

Almost surely, 2^16853685017 is an apocalyptic number.

It is an amenable number.

16853685017 is a deficient number, since it is larger than the sum of its proper divisors (1321209007).

16853685017 is a wasteful number, since it uses less digits than its factorization.

16853685017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769419.

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 16853685017 in words is "sixteen billion, eight hundred fifty-three million, six hundred eighty-five thousand, seventeen".