18383494725960 has 512 divisors, whose sum is σ = 70899978240000. Its totient is φ = 3708601085952.

The previous prime is 18383494725941. The next prime is 18383494725971. The reversal of 18383494725960 is 6952749438381.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 32336241 + ... + 32899839.

It is an arithmetic number, because the mean of its divisors is an integer number (138476520000).

It is a 2-persistent number, because it is pandigital, and so is 2⋅18383494725960 = 36766989451920, but 3⋅18383494725960 = 55150484177880 is not.

Almost surely, 2^{18383494725960} is an apocalyptic number.

18383494725960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18383494725960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35449989120000).

18383494725960 is an abundant number, since it is smaller than the sum of its proper divisors (52516483514040).

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

18383494725960 is a wasteful number, since it uses less digits than its factorization.

18383494725960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563765 (or 563761 counting only the distinct ones).

The product of its (nonzero) digits is 313528320, while the sum is 69.

The spelling of 18383494725960 in words is "eighteen trillion, three hundred eighty-three billion, four hundred ninety-four million, seven hundred twenty-five thousand, nine hundred sixty".