16853382812 has 72 divisors (see below), whose sum is σ = 36168935040. Its totient is φ = 6832395360.

The previous prime is 16853382751. The next prime is 16853382823. The reversal of 16853382812 is 21828335861.

It is a congruent number.

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, 2763887 + ... + 2769977.

It is an arithmetic number, because the mean of its divisors is an integer number (502346320).

Almost surely, 2^16853382812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16853382812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18084467520).

16853382812 is an abundant number, since it is smaller than the sum of its proper divisors (19315552228).

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

16853382812 is a wasteful number, since it uses less digits than its factorization.

16853382812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6871 (or 6862 counting only the distinct ones).

The product of its digits is 552960, while the sum is 47.

The spelling of 16853382812 in words is "sixteen billion, eight hundred fifty-three million, three hundred eighty-two thousand, eight hundred twelve".