12535642312530 has 128 divisors (see below), whose sum is σ = 30683612146176. Its totient is φ = 3276966604800.

The previous prime is 12535642312519. The next prime is 12535642312547. The reversal of 12535642312530 is 3521324653521.

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 63 ways as a sum of consecutive naturals, for example, 335185792 + ... + 335223188.

It is an arithmetic number, because the mean of its divisors is an integer number (239715719892).

Almost surely, 2^{12535642312530} is an apocalyptic number.

12535642312530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12535642312530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15341806073088).

12535642312530 is an abundant number, since it is smaller than the sum of its proper divisors (18147969833646).

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

12535642312530 is a wasteful number, since it uses less digits than its factorization.

12535642312530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38372.

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 12535642312530 in words is "twelve trillion, five hundred thirty-five billion, six hundred forty-two million, three hundred twelve thousand, five hundred thirty".