243324487296 has 240 divisors, whose sum is σ = 795948353970. Its totient is φ = 73734312960.

The previous prime is 243324487253. The next prime is 243324487331. The reversal of 243324487296 is 692784423342.

243324487296 is a `hidden beast` number, since 2 + 4 + 33 + 244 + 87 + 296 = 666.

It can be written as a sum of positive squares in only one way, i.e., 238792504896 + 4531982400 = 488664^2 + 67320^2 .

It is a super-2 number, since 2×243324487296² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1157550 + ... + 1351506.

Almost surely, 2^243324487296 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 243324487296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (397974176985).

243324487296 is an abundant number, since it is smaller than the sum of its proper divisors (552623866674).

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

243324487296 is a wasteful number, since it uses less digits than its factorization.

243324487296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194005 (or 193973 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 54.

The spelling of 243324487296 in words is "two hundred forty-three billion, three hundred twenty-four million, four hundred eighty-seven thousand, two hundred ninety-six".