18803294208 has 256 divisors, whose sum is σ = 56905351200. Its totient is φ = 6134169600.

The previous prime is 18803294201. The next prime is 18803294231. The reversal of 18803294208 is 80249230881.

It is a tau number, because it is divible by the number of its divisors (256).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18803294201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46890808 + ... + 46891208.

Almost surely, 2^18803294208 is an apocalyptic number.

18803294208 is a gapful number since it is divisible by the number (18) 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 18803294208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28452675600).

18803294208 is an abundant number, since it is smaller than the sum of its proper divisors (38102056992).

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

18803294208 is an frugal number, since it uses more digits than its factorization.

18803294208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The spelling of 18803294208 in words is "eighteen billion, eight hundred three million, two hundred ninety-four thousand, two hundred eight".