12534643623287 has 2 divisors, whose sum is σ = 12534643623288. Its totient is φ = 12534643623286.

The previous prime is 12534643623251. The next prime is 12534643623389. The reversal of 12534643623287 is 78232634643521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12534643623287 - 2¹² = 12534643619191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12534673623287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6267321811643 + 6267321811644.

It is an arithmetic number, because the mean of its divisors is an integer number (6267321811644).

Almost surely, 2^{12534643623287} is an apocalyptic number.

12534643623287 is a deficient number, since it is larger than the sum of its proper divisors (1).

12534643623287 is an equidigital number, since it uses as much as digits as its factorization.

12534643623287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34836480, while the sum is 56.

The spelling of 12534643623287 in words is "twelve trillion, five hundred thirty-four billion, six hundred forty-three million, six hundred twenty-three thousand, two hundred eighty-seven".