243006721604247 has 16 divisors (see below), whose sum is σ = 330441915326688. Its totient is φ = 158793922560000.

The previous prime is 243006721604233. The next prime is 243006721604291. The reversal of 243006721604247 is 742406127600342.

It is not a de Polignac number, because 243006721604247 - 2²² = 243006717409943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 243006721604196 and 243006721604205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243006721609247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 739595754 + ... + 739924247.

It is an arithmetic number, because the mean of its divisors is an integer number (20652619707918).

Almost surely, 2^{243006721604247} is an apocalyptic number.

243006721604247 is a deficient number, since it is larger than the sum of its proper divisors (87435193722441).

243006721604247 is a wasteful number, since it uses less digits than its factorization.

243006721604247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479521090.

The product of its (nonzero) digits is 2709504, while the sum is 48.

The spelling of 243006721604247 in words is "two hundred forty-three trillion, six billion, seven hundred twenty-one million, six hundred four thousand, two hundred forty-seven".