18863230932 has 144 divisors (see below), whose sum is σ = 61774527360. Its totient is φ = 4713064704.

The previous prime is 18863230891. The next prime is 18863230937. The reversal of 18863230932 is 23903236881.

18863230932 is a `hidden beast` number, since 1 + 8 + 8 + 632 + 3 + 0 + 9 + 3 + 2 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18863230937) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 89283 + ... + 213770.

Almost surely, 2^18863230932 is an apocalyptic number.

18863230932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18863230932 is an abundant number, since it is smaller than the sum of its proper divisors (42911296428).

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

18863230932 is a wasteful number, since it uses less digits than its factorization.

18863230932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303102 (or 303097 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 18863230932 in words is "eighteen billion, eight hundred sixty-three million, two hundred thirty thousand, nine hundred thirty-two".