243223673770437 has 8 divisors (see below), whose sum is σ = 325944415611936. Its totient is φ = 161326023887952.

The previous prime is 243223673770421. The next prime is 243223673770489. The reversal of 243223673770437 is 734077376322342.

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

It is not a de Polignac number, because 243223673770437 - 2⁴ = 243223673770421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243223673775437) 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, 205772989063 + ... + 205772990244.

It is an arithmetic number, because the mean of its divisors is an integer number (40743051951492).

Almost surely, 2^{243223673770437} is an apocalyptic number.

It is an amenable number.

243223673770437 is a deficient number, since it is larger than the sum of its proper divisors (82720741841499).

243223673770437 is a wasteful number, since it uses less digits than its factorization.

243223673770437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411545979507.

The product of its (nonzero) digits is 149361408, while the sum is 60.

The spelling of 243223673770437 in words is "two hundred forty-three trillion, two hundred twenty-three billion, six hundred seventy-three million, seven hundred seventy thousand, four hundred thirty-seven".