218943171013273 has 16 divisors (see below), whose sum is σ = 254325820637440. Its totient is φ = 184586859201600.

The previous prime is 218943171013247. The next prime is 218943171013279. The reversal of 218943171013273 is 372310171349812.

It is a cyclic number.

It is not a de Polignac number, because 218943171013273 - 2¹³ = 218943171005081 is a prime.

It is a super-2 number, since 2×218943171013273² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 218943171013273.

It is not an unprimeable number, because it can be changed into a prime (218943171013279) 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, 32755228 + ... + 38868898.

It is an arithmetic number, because the mean of its divisors is an integer number (15895363789840).

Almost surely, 2^{218943171013273} is an apocalyptic number.

It is an amenable number.

218943171013273 is a deficient number, since it is larger than the sum of its proper divisors (35382649624167).

218943171013273 is an equidigital number, since it uses as much as digits as its factorization.

218943171013273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6197608.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The spelling of 218943171013273 in words is "two hundred eighteen trillion, nine hundred forty-three billion, one hundred seventy-one million, thirteen thousand, two hundred seventy-three".