243836568423 has 48 divisors (see below), whose sum is σ = 408511434240. Its totient is φ = 137271943872.

The previous prime is 243836568421. The next prime is 243836568427. The reversal of 243836568423 is 324865638342.

243836568423 is a `hidden beast` number, since 2 + 4 + 3 + 8 + 36 + 568 + 42 + 3 = 666.

It is not a de Polignac number, because 243836568423 - 2¹ = 243836568421 is a prime.

It is a super-4 number, since 4×243836568423⁴ (a number of 47 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243836568423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243836568421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1812265 + ... + 1942157.

It is an arithmetic number, because the mean of its divisors is an integer number (8510654880).

Almost surely, 2^243836568423 is an apocalyptic number.

243836568423 is a deficient number, since it is larger than the sum of its proper divisors (164674865817).

243836568423 is a wasteful number, since it uses less digits than its factorization.

243836568423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130348 (or 130345 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 54.

The spelling of 243836568423 in words is "two hundred forty-three billion, eight hundred thirty-six million, five hundred sixty-eight thousand, four hundred twenty-three".