243006721324671 has 8 divisors (see below), whose sum is σ = 324011512863280. Its totient is φ = 162003205334592.

The previous prime is 243006721324463. The next prime is 243006721324691. The reversal of 243006721324671 is 176423127600342.

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

It is not a de Polignac number, because 243006721324671 - 2¹⁰ = 243006721323647 is a prime.

It is a super-2 number, since 2×243006721324671² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243006721324671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243006721324691) 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, 318442516 + ... + 319204713.

It is an arithmetic number, because the mean of its divisors is an integer number (40501439107910).

Almost surely, 2^{243006721324671} is an apocalyptic number.

243006721324671 is a deficient number, since it is larger than the sum of its proper divisors (81004791538609).

243006721324671 is a wasteful number, since it uses less digits than its factorization.

243006721324671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637774265.

The product of its (nonzero) digits is 2032128, while the sum is 48.

The spelling of 243006721324671 in words is "two hundred forty-three trillion, six billion, seven hundred twenty-one million, three hundred twenty-four thousand, six hundred seventy-one".