18803457112 has 24 divisors (see below), whose sum is σ = 38752994700. Its totient is φ = 8547025520.

The previous prime is 18803457107. The next prime is 18803457157. The reversal of 18803457112 is 21175430881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9711562 + ... + 9713497.

Almost surely, 2^18803457112 is an apocalyptic number.

It is an amenable number.

18803457112 is an abundant number, since it is smaller than the sum of its proper divisors (19949537588).

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

18803457112 is a wasteful number, since it uses less digits than its factorization.

18803457112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19425087 (or 19425072 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

Adding to 18803457112 its reverse (21175430881), we get a palindrome (39978887993).

The spelling of 18803457112 in words is "eighteen billion, eight hundred three million, four hundred fifty-seven thousand, one hundred twelve".