243765943868 has 48 divisors (see below), whose sum is σ = 438752146560. Its totient is φ = 118446022656.

The previous prime is 243765943859. The next prime is 243765943871. The reversal of 243765943868 is 868349567342.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70511996 + ... + 70515452.

It is an arithmetic number, because the mean of its divisors is an integer number (9140669720).

Almost surely, 2^243765943868 is an apocalyptic number.

It is an amenable number.

243765943868 is a deficient number, since it is larger than the sum of its proper divisors (194986202692).

243765943868 is a wasteful number, since it uses less digits than its factorization.

243765943868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6054 (or 6052 counting only the distinct ones).

The product of its digits is 209018880, while the sum is 65.

The spelling of 243765943868 in words is "two hundred forty-three billion, seven hundred sixty-five million, nine hundred forty-three thousand, eight hundred sixty-eight".