18803234928 has 40 divisors (see below), whose sum is σ = 49189907200. Its totient is φ = 6188405184.

The previous prime is 18803234927. The next prime is 18803234969. The reversal of 18803234928 is 82943230881.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18803234927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2475538 + ... + 2483121.

It is an arithmetic number, because the mean of its divisors is an integer number (1229747680).

Almost surely, 2^18803234928 is an apocalyptic number.

It is an amenable number.

18803234928 is an abundant number, since it is smaller than the sum of its proper divisors (30386672272).

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

18803234928 is a wasteful number, since it uses less digits than its factorization.

18803234928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4958749 (or 4958743 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The spelling of 18803234928 in words is "eighteen billion, eight hundred three million, two hundred thirty-four thousand, nine hundred twenty-eight".