243733616404 has 24 divisors (see below), whose sum is σ = 430639890408. Its totient is φ = 120697758720.

The previous prime is 243733616389. The next prime is 243733616449. The reversal of 243733616404 is 404616337342.

It can be written as a sum of positive squares in 4 ways, for example, as 2454211600 + 241279404804 = 49540^2 + 491202^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

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, 276307 + ... + 750874.

It is an arithmetic number, because the mean of its divisors is an integer number (17943328767).

Almost surely, 2^243733616404 is an apocalyptic number.

It is an amenable number.

243733616404 is a deficient number, since it is larger than the sum of its proper divisors (186906274004).

243733616404 is a wasteful number, since it uses less digits than its factorization.

243733616404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027755 (or 1027753 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 43.

The spelling of 243733616404 in words is "two hundred forty-three billion, seven hundred thirty-three million, six hundred sixteen thousand, four hundred four".