16813830450 has 96 divisors (see below), whose sum is σ = 45344669184. Its totient is φ = 4105866240.

The previous prime is 16813830419. The next prime is 16813830457. The reversal of 16813830450 is 5403831861.

It is a junction number, because it is equal to n+sod(n) for n = 16813830399 and 16813830408.

It is not an unprimeable number, because it can be changed into a prime (16813830457) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5247 + ... + 183453.

It is an arithmetic number, because the mean of its divisors is an integer number (472340304).

Almost surely, 2^16813830450 is an apocalyptic number.

16813830450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16813830450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22672334592).

16813830450 is an abundant number, since it is smaller than the sum of its proper divisors (28530838734).

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

16813830450 is a wasteful number, since it uses less digits than its factorization.

16813830450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178276 (or 178271 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 16813830450 in words is "sixteen billion, eight hundred thirteen million, eight hundred thirty thousand, four hundred fifty".