243042967266 has 32 divisors (see below), whose sum is σ = 530312894208. Its totient is φ = 73644199440.

The previous prime is 243042967231. The next prime is 243042967267. The reversal of 243042967266 is 662769240342.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (243042967267) 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, 873405 + ... + 1117551.

It is an arithmetic number, because the mean of its divisors is an integer number (16572277944).

Almost surely, 2^243042967266 is an apocalyptic number.

243042967266 is an abundant number, since it is smaller than the sum of its proper divisors (287269926942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243042967266 is a wasteful number, since it uses less digits than its factorization.

243042967266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259246.

The product of its (nonzero) digits is 5225472, while the sum is 51.

The spelling of 243042967266 in words is "two hundred forty-three billion, forty-two million, nine hundred sixty-seven thousand, two hundred sixty-six".