16823293928 has 64 divisors (see below), whose sum is σ = 36898467840. Its totient is φ = 7040954304.

The previous prime is 16823293919. The next prime is 16823293933. The reversal of 16823293928 is 82939232861.

It is a self number, because there is not a number n which added to its sum of digits gives 16823293928.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1222301 + ... + 1235987.

It is an arithmetic number, because the mean of its divisors is an integer number (576538560).

Almost surely, 2^16823293928 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 16823293928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18449233920).

16823293928 is an abundant number, since it is smaller than the sum of its proper divisors (20075173912).

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

16823293928 is a wasteful number, since it uses less digits than its factorization.

16823293928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14214 (or 14210 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 53.

The spelling of 16823293928 in words is "sixteen billion, eight hundred twenty-three million, two hundred ninety-three thousand, nine hundred twenty-eight".