18328380968380 has 48 divisors (see below), whose sum is σ = 45900641041920. Its totient is φ = 6010798229568.

The previous prime is 18328380968329. The next prime is 18328380968383. The reversal of 18328380968380 is 8386908382381.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18328380968383) 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, 2846018670 + ... + 2846025109.

It is an arithmetic number, because the mean of its divisors is an integer number (956263355040).

Almost surely, 2^{18328380968380} is an apocalyptic number.

18328380968380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18328380968380 is an abundant number, since it is smaller than the sum of its proper divisors (27572260073540).

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

18328380968380 is a wasteful number, since it uses less digits than its factorization.

18328380968380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5692043818 (or 5692043816 counting only the distinct ones).

The product of its (nonzero) digits is 95551488, while the sum is 67.

The spelling of 18328380968380 in words is "eighteen trillion, three hundred twenty-eight billion, three hundred eighty million, nine hundred sixty-eight thousand, three hundred eighty".