243452206205 has 8 divisors (see below), whose sum is σ = 314615158872. Its totient is φ = 179780090688.

The previous prime is 243452206157. The next prime is 243452206229. The reversal of 243452206205 is 502602254342.

It can be written as a sum of positive squares in 4 ways, for example, as 24462836836 + 218989369369 = 156406^2 + 467963^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 243452206205 - 2¹⁰ = 243452205181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1872709214 + ... + 1872709343.

It is an arithmetic number, because the mean of its divisors is an integer number (39326894859).

Almost surely, 2^243452206205 is an apocalyptic number.

It is an amenable number.

243452206205 is a deficient number, since it is larger than the sum of its proper divisors (71162952667).

243452206205 is a wasteful number, since it uses less digits than its factorization.

243452206205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3745418575.

The product of its (nonzero) digits is 115200, while the sum is 35.

The spelling of 243452206205 in words is "two hundred forty-three billion, four hundred fifty-two million, two hundred six thousand, two hundred five".