218272419323343 has 24 divisors (see below), whose sum is σ = 393079335232896. Its totient is φ = 113388269778000.

The previous prime is 218272419323339. The next prime is 218272419323381. The reversal of 218272419323343 is 343323914272812.

It is a happy number.

218272419323343 is a `hidden beast` number, since 2 + 1 + 8 + 27 + 241 + 9 + 32 + 3 + 343 = 666.

It is not a de Polignac number, because 218272419323343 - 2² = 218272419323339 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 218272419323343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218272419323843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157483707333 + ... + 157483708718.

It is an arithmetic number, because the mean of its divisors is an integer number (16378305634704).

Almost surely, 2^{218272419323343} is an apocalyptic number.

218272419323343 is a deficient number, since it is larger than the sum of its proper divisors (174806915909553).

218272419323343 is a wasteful number, since it uses less digits than its factorization.

218272419323343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314967416075 (or 314967416072 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 54.

The spelling of 218272419323343 in words is "two hundred eighteen trillion, two hundred seventy-two billion, four hundred nineteen million, three hundred twenty-three thousand, three hundred forty-three".