218474825023 has 16 divisors (see below), whose sum is σ = 269307763200. Its totient is φ = 172591985376.

The previous prime is 218474825017. The next prime is 218474825047. The reversal of 218474825023 is 320528474812.

It is a cyclic number.

It is not a de Polignac number, because 218474825023 - 2⁵ = 218474824991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218474865023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1796473 + ... + 1914226.

It is an arithmetic number, because the mean of its divisors is an integer number (16831735200).

Almost surely, 2^218474825023 is an apocalyptic number.

218474825023 is a deficient number, since it is larger than the sum of its proper divisors (50832938177).

218474825023 is a wasteful number, since it uses less digits than its factorization.

218474825023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3711366.

The product of its (nonzero) digits is 860160, while the sum is 46.

The spelling of 218474825023 in words is "two hundred eighteen billion, four hundred seventy-four million, eight hundred twenty-five thousand, twenty-three".