243693752896 has 112 divisors (see below), whose sum is σ = 538117816320. Its totient is φ = 108570309120.

The previous prime is 243693752881. The next prime is 243693752941. The reversal of 243693752896 is 698257396342.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7404445 + ... + 7437283.

It is an arithmetic number, because the mean of its divisors is an integer number (4804623360).

Almost surely, 2^243693752896 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 243693752896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269058908160).

243693752896 is an abundant number, since it is smaller than the sum of its proper divisors (294424063424).

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

243693752896 is a wasteful number, since it uses less digits than its factorization.

243693752896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33072 (or 33062 counting only the distinct ones).

The product of its digits is 117573120, while the sum is 64.

The spelling of 243693752896 in words is "two hundred forty-three billion, six hundred ninety-three million, seven hundred fifty-two thousand, eight hundred ninety-six".