18453473618208 has 96 divisors (see below), whose sum is σ = 49024585358784. Its totient is φ = 6077191421952.

The previous prime is 18453473618179. The next prime is 18453473618231. The reversal of 18453473618208 is 80281637435481.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3655791 + ... + 7090257.

It is an arithmetic number, because the mean of its divisors is an integer number (510672764154).

Almost surely, 2^{18453473618208} 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 18453473618208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24512292679392).

18453473618208 is an abundant number, since it is smaller than the sum of its proper divisors (30571111740576).

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

18453473618208 is a wasteful number, since it uses less digits than its factorization.

18453473618208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3435154 (or 3435146 counting only the distinct ones).

The product of its (nonzero) digits is 30965760, while the sum is 60.

The spelling of 18453473618208 in words is "eighteen trillion, four hundred fifty-three billion, four hundred seventy-three million, six hundred eighteen thousand, two hundred eight".