18703113732 has 48 divisors (see below), whose sum is σ = 48769889280. Its totient is φ = 6198328224.

The previous prime is 18703113713. The next prime is 18703113739. The reversal of 18703113732 is 23731130781.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (18703113739) 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, 481828 + ... + 519195.

It is an arithmetic number, because the mean of its divisors is an integer number (1016039360).

Almost surely, 2^18703113732 is an apocalyptic number.

18703113732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18703113732 is an abundant number, since it is smaller than the sum of its proper divisors (30066775548).

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

18703113732 is a wasteful number, since it uses less digits than its factorization.

18703113732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001209 (or 1001201 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The spelling of 18703113732 in words is "eighteen billion, seven hundred three million, one hundred thirteen thousand, seven hundred thirty-two".