218704473273 has 16 divisors (see below), whose sum is σ = 342586028736. Its totient is φ = 122352152640.

The previous prime is 218704473257. The next prime is 218704473287. The reversal of 218704473273 is 372374407812.

It is not a de Polignac number, because 218704473273 - 2⁴ = 218704473257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (218704473073) 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 15 ways as a sum of consecutive naturals, for example, 254899890 + ... + 254900747.

It is an arithmetic number, because the mean of its divisors is an integer number (21411626796).

Almost surely, 2^218704473273 is an apocalyptic number.

It is an amenable number.

218704473273 is a deficient number, since it is larger than the sum of its proper divisors (123881555463).

218704473273 is a wasteful number, since it uses less digits than its factorization.

218704473273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509800664.

The product of its (nonzero) digits is 1580544, while the sum is 48.

The spelling of 218704473273 in words is "two hundred eighteen billion, seven hundred four million, four hundred seventy-three thousand, two hundred seventy-three".