16929823872 has 128 divisors (see below), whose sum is σ = 49043232000. Its totient is φ = 5143117824.

The previous prime is 16929823787. The next prime is 16929823891. The reversal of 16929823872 is 27832892961.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

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, 372904 + ... + 415832.

It is an arithmetic number, because the mean of its divisors is an integer number (383150250).

Almost surely, 2^16929823872 is an apocalyptic number.

16929823872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16929823872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24521616000).

16929823872 is an abundant number, since it is smaller than the sum of its proper divisors (32113408128).

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

16929823872 is a wasteful number, since it uses less digits than its factorization.

16929823872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43038 (or 43026 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 57.

The spelling of 16929823872 in words is "sixteen billion, nine hundred twenty-nine million, eight hundred twenty-three thousand, eight hundred seventy-two".