18324631868928 has 1280 divisors, whose sum is σ = 64727601168384. Its totient is φ = 4466318376960.

The previous prime is 18324631868927. The next prime is 18324631869067. The reversal of 18324631868928 is 82986813642381.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18324631868927) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 62541405550 + ... + 62541405842.

Almost surely, 2^{18324631868928} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18324631868928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32363800584192).

18324631868928 is an abundant number, since it is smaller than the sum of its proper divisors (46402969299456).

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

18324631868928 is a wasteful number, since it uses less digits than its factorization.

18324631868928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715 (or 699 counting only the distinct ones).

The product of its digits is 191102976, while the sum is 69.

The spelling of 18324631868928 in words is "eighteen trillion, three hundred twenty-four billion, six hundred thirty-one million, eight hundred sixty-eight thousand, nine hundred twenty-eight".