12642684528687 has 8 divisors (see below), whose sum is σ = 17312504940336. Its totient is φ = 8200660234752.

The previous prime is 12642684528647. The next prime is 12642684528703. The reversal of 12642684528687 is 78682548624621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12642684528687 - 2¹⁰ = 12642684527663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12642684528647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56949029298 + ... + 56949029519.

It is an arithmetic number, because the mean of its divisors is an integer number (2164063117542).

Almost surely, 2^{12642684528687} is an apocalyptic number.

12642684528687 is a deficient number, since it is larger than the sum of its proper divisors (4669820411649).

12642684528687 is a wasteful number, since it uses less digits than its factorization.

12642684528687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113898058857.

The product of its digits is 495452160, while the sum is 69.

The spelling of 12642684528687 in words is "twelve trillion, six hundred forty-two billion, six hundred eighty-four million, five hundred twenty-eight thousand, six hundred eighty-seven".