12642084860505 has 32 divisors (see below), whose sum is σ = 21445111833600. Its totient is φ = 6341625888192.

The previous prime is 12642084860479. The next prime is 12642084860527. The reversal of 12642084860505 is 50506848024621.

It is a happy number.

It is not a de Polignac number, because 12642084860505 - 2²⁶ = 12642017751641 is a prime.

It is a Curzon number.

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, 159522229 + ... + 159601458.

It is an arithmetic number, because the mean of its divisors is an integer number (670159744800).

Almost surely, 2^{12642084860505} is an apocalyptic number.

12642084860505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12642084860505 is a deficient number, since it is larger than the sum of its proper divisors (8803026973095).

12642084860505 is a wasteful number, since it uses less digits than its factorization.

12642084860505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319123853.

The product of its (nonzero) digits is 3686400, while the sum is 51.

The spelling of 12642084860505 in words is "twelve trillion, six hundred forty-two billion, eighty-four million, eight hundred sixty thousand, five hundred five".