18668330932 has 12 divisors (see below), whose sum is σ = 33205146436. Its totient is φ = 9181146240.

The previous prime is 18668330917. The next prime is 18668330939. The reversal of 18668330932 is 23903386681.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 897841296 + 17770489636 = 29964^2 + 133306^2 .

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18668330939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38254533 + ... + 38255020.

Almost surely, 2^18668330932 is an apocalyptic number.

It is an amenable number.

18668330932 is a deficient number, since it is larger than the sum of its proper divisors (14536815504).

18668330932 is a wasteful number, since it uses less digits than its factorization.

18668330932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76509618 (or 76509616 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 49.

The spelling of 18668330932 in words is "eighteen billion, six hundred sixty-eight million, three hundred thirty thousand, nine hundred thirty-two".