243461640733023 has 4 divisors (see below), whose sum is σ = 324615520977368. Its totient is φ = 162307760488680.

The previous prime is 243461640733007. The next prime is 243461640733037. The reversal of 243461640733023 is 320337046164342.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 243461640733023 - 2⁴ = 243461640733007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243461640733063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40576940122168 + ... + 40576940122173.

It is an arithmetic number, because the mean of its divisors is an integer number (81153880244342).

Almost surely, 2^{243461640733023} is an apocalyptic number.

243461640733023 is a deficient number, since it is larger than the sum of its proper divisors (81153880244345).

243461640733023 is an equidigital number, since it uses as much as digits as its factorization.

243461640733023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81153880244344.

The product of its (nonzero) digits is 5225472, while the sum is 48.

Adding to 243461640733023 its reverse (320337046164342), we get a palindrome (563798686897365).

The spelling of 243461640733023 in words is "two hundred forty-three trillion, four hundred sixty-one billion, six hundred forty million, seven hundred thirty-three thousand, twenty-three".