243148535305434 has 192 divisors, whose sum is σ = 595430386387200. Its totient is φ = 71062470236160.

The previous prime is 243148535305411. The next prime is 243148535305453. The reversal of 243148535305434 is 434503535841342.

243148535305434 is a `hidden beast` number, since 2 + 4 + 3 + 1 + 4 + 8 + 53 + 530 + 54 + 3 + 4 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 531367842 + ... + 531825234.

It is an arithmetic number, because the mean of its divisors is an integer number (3101199929100).

Almost surely, 2^{243148535305434} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243148535305434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297715193193600).

243148535305434 is an abundant number, since it is smaller than the sum of its proper divisors (352281851081766).

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

243148535305434 is a wasteful number, since it uses less digits than its factorization.

243148535305434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458085 (or 458082 counting only the distinct ones).

The product of its (nonzero) digits is 41472000, while the sum is 54.

The spelling of 243148535305434 in words is "two hundred forty-three trillion, one hundred forty-eight billion, five hundred thirty-five million, three hundred five thousand, four hundred thirty-four".