243727327064 has 128 divisors (see below), whose sum is σ = 551403417600. Its totient is φ = 99772508160.

The previous prime is 243727327037. The next prime is 243727327069. The reversal of 243727327064 is 460723727342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243727327069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6397079 + ... + 6435065.

It is an arithmetic number, because the mean of its divisors is an integer number (4307839200).

Almost surely, 2^243727327064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243727327064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275701708800).

243727327064 is an abundant number, since it is smaller than the sum of its proper divisors (307676090536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243727327064 is a wasteful number, since it uses less digits than its factorization.

243727327064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38233 (or 38229 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 47.

The spelling of 243727327064 in words is "two hundred forty-three billion, seven hundred twenty-seven million, three hundred twenty-seven thousand, sixty-four".