4012543504530 has 384 divisors, whose sum is σ = 12064994323200. Its totient is φ = 951229992960.

The previous prime is 4012543504517. The next prime is 4012543504547. The reversal of 4012543504530 is 354053452104.

4012543504530 is a `hidden beast` number, since 4 + 0 + 1 + 254 + 350 + 4 + 53 + 0 = 666.

It is a super-2 number, since 2×4012543504530² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 443419446 + ... + 443428494.

It is an arithmetic number, because the mean of its divisors is an integer number (31419256050).

Almost surely, 2^{4012543504530} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4012543504530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6032497161600).

4012543504530 is an abundant number, since it is smaller than the sum of its proper divisors (8052450818670).

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

4012543504530 is a wasteful number, since it uses less digits than its factorization.

4012543504530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9448 (or 9436 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 4012543504530 its reverse (354053452104), we get a palindrome (4366596956634).

The spelling of 4012543504530 in words is "four trillion, twelve billion, five hundred forty-three million, five hundred four thousand, five hundred thirty".