218748034271 has 4 divisors (see below), whose sum is σ = 235574806152. Its totient is φ = 201921262392.

The previous prime is 218748034243. The next prime is 218748034279. The reversal of 218748034271 is 172430847812.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 218748034271 - 2¹⁰ = 218748033247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218748034279) 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 3 ways as a sum of consecutive naturals, for example, 8413385921 + ... + 8413385946.

It is an arithmetic number, because the mean of its divisors is an integer number (58893701538).

Almost surely, 2^218748034271 is an apocalyptic number.

218748034271 is a deficient number, since it is larger than the sum of its proper divisors (16826771881).

218748034271 is a wasteful number, since it uses less digits than its factorization.

218748034271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16826771880.

The product of its (nonzero) digits is 602112, while the sum is 47.

The spelling of 218748034271 in words is "two hundred eighteen billion, seven hundred forty-eight million, thirty-four thousand, two hundred seventy-one".