18454360536000 has 336 divisors, whose sum is σ = 66198299993280. Its totient is φ = 4907447961600.

The previous prime is 18454360535953. The next prime is 18454360536019. The reversal of 18454360536000 is 63506345481.

18454360536000 is a `hidden beast` number, since 1 + 8 + 4 + 5 + 4 + 3 + 605 + 36 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 25491022 + ... + 26204978.

It is an arithmetic number, because the mean of its divisors is an integer number (197018749980).

Almost surely, 2^{18454360536000} is an apocalyptic number.

18454360536000 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 18454360536000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33099149996640).

18454360536000 is an abundant number, since it is smaller than the sum of its proper divisors (47743939457280).

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

18454360536000 is a wasteful number, since it uses less digits than its factorization.

18454360536000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714349 (or 714326 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 18454360536000 in words is "eighteen trillion, four hundred fifty-four billion, three hundred sixty million, five hundred thirty-six thousand".