218568873341 has 32 divisors (see below), whose sum is σ = 270708953088. Its totient is φ = 171842031360.

The previous prime is 218568873331. The next prime is 218568873359. The reversal of 218568873341 is 143378865812.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-218568873341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218568873331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17322551 + ... + 17335163.

It is an arithmetic number, because the mean of its divisors is an integer number (8459654784).

Almost surely, 2^218568873341 is an apocalyptic number.

It is an amenable number.

218568873341 is a deficient number, since it is larger than the sum of its proper divisors (52140079747).

218568873341 is a wasteful number, since it uses less digits than its factorization.

218568873341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13821.

The product of its digits is 7741440, while the sum is 56.

The spelling of 218568873341 in words is "two hundred eighteen billion, five hundred sixty-eight million, eight hundred seventy-three thousand, three hundred forty-one".