243987448352 has 54 divisors (see below), whose sum is σ = 497650535109. Its totient is φ = 117747925120.

The previous prime is 243987448339. The next prime is 243987448363. The reversal of 243987448352 is 253844789342.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 243842390416 + 145057936 = 493804^2 + 12044^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=349276.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243987448291 and 243987448300.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 81030527 + ... + 81033537.

Almost surely, 2^243987448352 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 243987448352

243987448352 is an abundant number, since it is smaller than the sum of its proper divisors (253663086757).

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

243987448352 is an frugal number, since it uses more digits than its factorization.

243987448352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6090 (or 3042 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 59.

The spelling of 243987448352 in words is "two hundred forty-three billion, nine hundred eighty-seven million, four hundred forty-eight thousand, three hundred fifty-two".