243201643226 has 8 divisors (see below), whose sum is σ = 364822538304. Its totient is φ = 121594130460.

The previous prime is 243201643199. The next prime is 243201643229. The reversal of 243201643226 is 622346102342.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (243201643229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3300020 + ... + 3372911.

It is an arithmetic number, because the mean of its divisors is an integer number (45602817288).

Almost surely, 2^243201643226 is an apocalyptic number.

243201643226 is a deficient number, since it is larger than the sum of its proper divisors (121620895078).

243201643226 is a wasteful number, since it uses less digits than its factorization.

243201643226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6691156.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 243201643226 its reverse (622346102342), we get a palindrome (865547745568).

The spelling of 243201643226 in words is "two hundred forty-three billion, two hundred one million, six hundred forty-three thousand, two hundred twenty-six".