18358671228804 has 45 divisors (see below), whose sum is σ = 47993394616167. Its totient is φ = 6119531368056.

The previous prime is 18358671228787. The next prime is 18358671228817. The reversal of 18358671228804 is 40882217685381.

The square root of 18358671228804 is 4284702.

It is a perfect power (a square), and thus also a powerful number.

18358671228804 is a `hidden beast` number, since 18 + 3 + 586 + 7 + 12 + 28 + 8 + 0 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 77005617 + ... + 77243655.

Almost surely, 2^{18358671228804} is an apocalyptic number.

18358671228804 is the 4284702-nd square number.

It is an amenable number.

18358671228804 is an abundant number, since it is smaller than the sum of its proper divisors (29634723387363).

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

18358671228804 is an frugal number, since it uses more digits than its factorization.

18358671228804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476094 (or 238044 counting only the distinct ones).

The product of its (nonzero) digits is 41287680, while the sum is 63.

The spelling of 18358671228804 in words is "eighteen trillion, three hundred fifty-eight billion, six hundred seventy-one million, two hundred twenty-eight thousand, eight hundred four".