16813348938 has 48 divisors (see below), whose sum is σ = 38487945600. Its totient is φ = 5289857280.

The previous prime is 16813348907. The next prime is 16813348943. The reversal of 16813348938 is 83984331861.

16813348938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1978 + ... + 183386.

It is an arithmetic number, because the mean of its divisors is an integer number (801832200).

Almost surely, 2^16813348938 is an apocalyptic number.

16813348938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16813348938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19243972800).

16813348938 is an abundant number, since it is smaller than the sum of its proper divisors (21674596662).

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

16813348938 is a wasteful number, since it uses less digits than its factorization.

16813348938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181707 (or 181704 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The spelling of 16813348938 in words is "sixteen billion, eight hundred thirteen million, three hundred forty-eight thousand, nine hundred thirty-eight".