243591589696 has 224 divisors, whose sum is σ = 646447800320. Its totient is φ = 88347801600.

The previous prime is 243591589687. The next prime is 243591589721. The reversal of 243591589696 is 696985195342.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3394831 + ... + 3465841.

It is an arithmetic number, because the mean of its divisors is an integer number (2885927680).

Almost surely, 2^243591589696 is an apocalyptic number.

243591589696 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243591589696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323223900160).

243591589696 is an abundant number, since it is smaller than the sum of its proper divisors (402856210624).

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

243591589696 is a wasteful number, since it uses less digits than its factorization.

243591589696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71093 (or 71083 counting only the distinct ones).

The product of its digits is 125971200, while the sum is 67.

The spelling of 243591589696 in words is "two hundred forty-three billion, five hundred ninety-one million, five hundred eighty-nine thousand, six hundred ninety-six".