12535054643436 has 96 divisors (see below), whose sum is σ = 31641459057600. Its totient is φ = 3839421358080.

The previous prime is 12535054643417. The next prime is 12535054643519. The reversal of 12535054643436 is 63434645053521.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226069476 + ... + 226124916.

It is an arithmetic number, because the mean of its divisors is an integer number (329598531850).

Almost surely, 2^{12535054643436} 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 12535054643436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15820729528800).

12535054643436 is an abundant number, since it is smaller than the sum of its proper divisors (19106404414164).

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

12535054643436 is a wasteful number, since it uses less digits than its factorization.

12535054643436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62019 (or 62017 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 51.

Adding to 12535054643436 its reverse (63434645053521), we get a palindrome (75969699696957).

The spelling of 12535054643436 in words is "twelve trillion, five hundred thirty-five billion, fifty-four million, six hundred forty-three thousand, four hundred thirty-six".