12536415284643 has 32 divisors (see below), whose sum is σ = 19172214558720. Its totient is φ = 8087741706240.

The previous prime is 12536415284623. The next prime is 12536415284663. The reversal of 12536415284643 is 34648251463521.

It is a happy number.

12536415284643 is a `hidden beast` number, since 1 + 2 + 5 + 36 + 4 + 1 + 528 + 46 + 43 = 666.

It is an interprime number because it is at equal distance from previous prime (12536415284623) and next prime (12536415284663).

It is not a de Polignac number, because 12536415284643 - 2⁶ = 12536415284579 is a prime.

It is a super-3 number, since 3×12536415284643³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12536415284643.

It is not an unprimeable number, because it can be changed into a prime (12536415284623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26766946 + ... + 27231272.

It is an arithmetic number, because the mean of its divisors is an integer number (599131704960).

Almost surely, 2^{12536415284643} is an apocalyptic number.

12536415284643 is a deficient number, since it is larger than the sum of its proper divisors (6635799274077).

12536415284643 is a wasteful number, since it uses less digits than its factorization.

12536415284643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496624 (or 496618 counting only the distinct ones).

The product of its digits is 16588800, while the sum is 54.

The spelling of 12536415284643 in words is "twelve trillion, five hundred thirty-six billion, four hundred fifteen million, two hundred eighty-four thousand, six hundred forty-three".