18618291448704 has 192 divisors, whose sum is σ = 56342919185280. Its totient is φ = 6118686604800.

The previous prime is 18618291448699. The next prime is 18618291448711. The reversal of 18618291448704 is 40784419281681.

18618291448704 is a `hidden beast` number, since 1 + 8 + 6 + 182 + 9 + 1 + 448 + 7 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2006982 + ... + 6423749.

It is an arithmetic number, because the mean of its divisors is an integer number (293452704090).

Almost surely, 2^{18618291448704} is an apocalyptic number.

It is an amenable number.

18618291448704 is an abundant number, since it is smaller than the sum of its proper divisors (37724627736576).

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

18618291448704 is an frugal number, since it uses more digits than its factorization.

18618291448704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8430831 (or 8430807 counting only the distinct ones).

The product of its (nonzero) digits is 24772608, while the sum is 63.

The spelling of 18618291448704 in words is "eighteen trillion, six hundred eighteen billion, two hundred ninety-one million, four hundred forty-eight thousand, seven hundred four".