18478500618873 has 8 divisors (see below), whose sum is σ = 24803356536000. Its totient is φ = 12236322557168.

The previous prime is 18478500618839. The next prime is 18478500618881. The reversal of 18478500618873 is 37881600587481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18478500618873 - 2¹³ = 18478500610681 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18478500613873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20669463333 + ... + 20669464226.

It is an arithmetic number, because the mean of its divisors is an integer number (3100419567000).

Almost surely, 2^{18478500618873} is an apocalyptic number.

It is an amenable number.

18478500618873 is a deficient number, since it is larger than the sum of its proper divisors (6324855917127).

18478500618873 is a wasteful number, since it uses less digits than its factorization.

18478500618873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41338927711.

The product of its (nonzero) digits is 72253440, while the sum is 66.

The spelling of 18478500618873 in words is "eighteen trillion, four hundred seventy-eight billion, five hundred million, six hundred eighteen thousand, eight hundred seventy-three".