243855687234 has 8 divisors (see below), whose sum is σ = 487711374480. Its totient is φ = 81285229076.

The previous prime is 243855687197. The next prime is 243855687239. The reversal of 243855687234 is 432786558342.

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

243855687234 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (243855687239) 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, 20321307264 + ... + 20321307275.

It is an arithmetic number, because the mean of its divisors is an integer number (60963921810).

Almost surely, 2^243855687234 is an apocalyptic number.

243855687234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

243855687234 is a wasteful number, since it uses less digits than its factorization.

243855687234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40642614544.

The product of its digits is 38707200, while the sum is 57.

The spelling of 243855687234 in words is "two hundred forty-three billion, eight hundred fifty-five million, six hundred eighty-seven thousand, two hundred thirty-four".