243406338053268 has 24 divisors (see below), whose sum is σ = 611636439211168. Its totient is φ = 74894257862496.

The previous prime is 243406338053261. The next prime is 243406338053293. The reversal of 243406338053268 is 862350833604342.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243406338053261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 780148519246 + ... + 780148519557.

Almost surely, 2^{243406338053268} is an apocalyptic number.

It is an amenable number.

243406338053268 is an abundant number, since it is smaller than the sum of its proper divisors (368230101157900).

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

243406338053268 is a wasteful number, since it uses less digits than its factorization.

243406338053268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560297038823 (or 1560297038821 counting only the distinct ones).

The product of its (nonzero) digits is 59719680, while the sum is 57.

The spelling of 243406338053268 in words is "two hundred forty-three trillion, four hundred six billion, three hundred thirty-eight million, fifty-three thousand, two hundred sixty-eight".