243723703427 has 8 divisors (see below), whose sum is σ = 244562914176. Its totient is φ = 242884878912.

The previous prime is 243723703409. The next prime is 243723703439. The reversal of 243723703427 is 724307327342.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243723703427 is a prime.

It is a super-2 number, since 2×243723703427² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243723703627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1197413 + ... + 1386089.

It is an arithmetic number, because the mean of its divisors is an integer number (30570364272).

Almost surely, 2^243723703427 is an apocalyptic number.

243723703427 is a deficient number, since it is larger than the sum of its proper divisors (839210749).

243723703427 is a wasteful number, since it uses less digits than its factorization.

243723703427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193117.

The product of its (nonzero) digits is 1185408, while the sum is 44.

The spelling of 243723703427 in words is "two hundred forty-three billion, seven hundred twenty-three million, seven hundred three thousand, four hundred twenty-seven".