243728524136 has 64 divisors (see below), whose sum is σ = 507670364160. Its totient is φ = 109176192000.

The previous prime is 243728524103. The next prime is 243728524139. The reversal of 243728524136 is 631425827342.

It is not an unprimeable number, because it can be changed into a prime (243728524139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216680 + ... + 731031.

It is an arithmetic number, because the mean of its divisors is an integer number (7932349440).

Almost surely, 2^243728524136 is an apocalyptic number.

It is an amenable number.

243728524136 is an abundant number, since it is smaller than the sum of its proper divisors (263941840024).

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

243728524136 is a wasteful number, since it uses less digits than its factorization.

243728524136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947826 (or 947822 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 47.

The spelling of 243728524136 in words is "two hundred forty-three billion, seven hundred twenty-eight million, five hundred twenty-four thousand, one hundred thirty-six".