243213888052 has 48 divisors (see below), whose sum is σ = 451991135232. Its totient is φ = 114342359040.

The previous prime is 243213888041. The next prime is 243213888053. The reversal of 243213888052 is 250888312342.

It is a junction number, because it is equal to n+sod(n) for n = 243213887993 and 243213888011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243213888053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 497268 + ... + 856564.

It is an arithmetic number, because the mean of its divisors is an integer number (9416481984).

Almost surely, 2^243213888052 is an apocalyptic number.

It is an amenable number.

243213888052 is a deficient number, since it is larger than the sum of its proper divisors (208777247180).

243213888052 is a wasteful number, since it uses less digits than its factorization.

243213888052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359488 (or 359486 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 46.

The spelling of 243213888052 in words is "two hundred forty-three billion, two hundred thirteen million, eight hundred eighty-eight thousand, fifty-two".