243214726660421 has 8 divisors (see below), whose sum is σ = 247380717343200. Its totient is φ = 239050192883760.

The previous prime is 243214726660361. The next prime is 243214726660447. The reversal of 243214726660421 is 124066627412342.

243214726660421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 243214726660421 - 2²² = 243214722466117 is a prime.

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 243214726660421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243214726600421) 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, 363889790 + ... + 364557551.

It is an arithmetic number, because the mean of its divisors is an integer number (30922589667900).

Almost surely, 2^{243214726660421} is an apocalyptic number.

It is an amenable number.

243214726660421 is a deficient number, since it is larger than the sum of its proper divisors (4165990682779).

243214726660421 is an equidigital number, since it uses as much as digits as its factorization.

243214726660421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728453059.

The product of its (nonzero) digits is 4644864, while the sum is 50.

The spelling of 243214726660421 in words is "two hundred forty-three trillion, two hundred fourteen billion, seven hundred twenty-six million, six hundred sixty thousand, four hundred twenty-one".