243442054544 has 20 divisors (see below), whose sum is σ = 507951210396. Its totient is φ = 112357871232.

The previous prime is 243442054523. The next prime is 243442054549. The reversal of 243442054544 is 445450244342.

243442054544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 159990400144 + 83451654400 = 399988^2 + 288880^2 .

It is not an unprimeable number, because it can be changed into a prime (243442054549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 585197039 + ... + 585197454.

Almost surely, 2^243442054544 is an apocalyptic number.

It is an amenable number.

243442054544 is an abundant number, since it is smaller than the sum of its proper divisors (264509155852).

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

243442054544 is a wasteful number, since it uses less digits than its factorization.

243442054544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170394514 (or 1170394508 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 41.

Adding to 243442054544 its reverse (445450244342), we get a palindrome (688892298886).

The spelling of 243442054544 in words is "two hundred forty-three billion, four hundred forty-two million, fifty-four thousand, five hundred forty-four".