243630413550 has 96 divisors (see below), whose sum is σ = 671627727360. Its totient is φ = 64939989600.

The previous prime is 243630413513. The next prime is 243630413561. The reversal of 243630413550 is 55314036342.

243630413550 is a `hidden beast` number, since 2 + 4 + 3 + 63 + 0 + 41 + 3 + 550 = 666.

243630413550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3179185 + ... + 3254915.

It is an arithmetic number, because the mean of its divisors is an integer number (6996122160).

Almost surely, 2^243630413550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243630413550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335813863680).

243630413550 is an abundant number, since it is smaller than the sum of its proper divisors (427997313810).

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

243630413550 is a wasteful number, since it uses less digits than its factorization.

243630413550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78135 (or 78124 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 243630413550 its reverse (55314036342), we get a palindrome (298944449892).

The spelling of 243630413550 in words is "two hundred forty-three billion, six hundred thirty million, four hundred thirteen thousand, five hundred fifty".