18274645646382 has 16 divisors (see below), whose sum is σ = 36549948955392. Its totient is φ = 6091438938360.

The previous prime is 18274645646333. The next prime is 18274645646443. The reversal of 18274645646382 is 28364654647281.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27041008 + ... + 27708579.

It is an arithmetic number, because the mean of its divisors is an integer number (2284371809712).

Almost surely, 2^{18274645646382} is an apocalyptic number.

18274645646382 is an abundant number, since it is smaller than the sum of its proper divisors (18275303309010).

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

18274645646382 is a wasteful number, since it uses less digits than its factorization.

18274645646382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54805223.

The product of its digits is 371589120, while the sum is 66.

The spelling of 18274645646382 in words is "eighteen trillion, two hundred seventy-four billion, six hundred forty-five million, six hundred forty-six thousand, three hundred eighty-two".