243663100434 has 96 divisors (see below), whose sum is σ = 595154746368. Its totient is φ = 71532720000.

The previous prime is 243663100411. The next prime is 243663100453. The reversal of 243663100434 is 434001366342.

243663100434 is a `hidden beast` number, since 243 + 66 + 310 + 0 + 43 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 278484 + ... + 751584.

It is an arithmetic number, because the mean of its divisors is an integer number (6199528608).

Almost surely, 2^243663100434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243663100434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297577373184).

243663100434 is an abundant number, since it is smaller than the sum of its proper divisors (351491645934).

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

243663100434 is a wasteful number, since it uses less digits than its factorization.

243663100434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473224 (or 473221 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 36.

Adding to 243663100434 its reverse (434001366342), we get a palindrome (677664466776).

The spelling of 243663100434 in words is "two hundred forty-three billion, six hundred sixty-three million, one hundred thousand, four hundred thirty-four".