18803234916 has 48 divisors (see below), whose sum is σ = 49786356480.
Its totient is φ = 6134387040.
The previous prime is 18803234911. The next prime is 18803234927. The reversal of 18803234916 is 61943230881.
It is not an unprimeable number, because it can be changed into a prime (18803234911) 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, 1847095 + ... + 1857246.
It is an arithmetic number, because the mean of its divisors is an integer number (1037215760).
Almost surely, 218803234916 is an apocalyptic number.
It is an amenable number.
18803234916 is an abundant number, since it is smaller than the sum of its proper divisors (30983121564).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18803234916 is a wasteful number, since it uses less digits than its factorization.
18803234916 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3704401 (or 3704393 counting only the distinct ones).
The product of its (nonzero) digits is 248832, while the sum is 45.
The spelling of 18803234916 in words is "eighteen billion, eight hundred three million, two hundred thirty-four thousand, nine hundred sixteen".