243453402784 has 24 divisors (see below), whose sum is σ = 481391909460. Its totient is φ = 121195140096.

The previous prime is 243453402761. The next prime is 243453402821. The reversal of 243453402784 is 487204354342.

243453402784 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 217734224400 + 25719178384 = 466620^2 + 160372^2 .

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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, 16603849 + ... + 16618504.

Almost surely, 2^243453402784 is an apocalyptic number.

It is an amenable number.

243453402784 is a deficient number, since it is larger than the sum of its proper divisors (237938506676).

243453402784 is a wasteful number, since it uses less digits than its factorization.

243453402784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33222592 (or 33222584 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 46.

The spelling of 243453402784 in words is "two hundred forty-three billion, four hundred fifty-three million, four hundred two thousand, seven hundred eighty-four".