12642604605 has 64 divisors (see below), whose sum is σ = 23254640640. Its totient is φ = 6510067200.

The previous prime is 12642604529. The next prime is 12642604631. The reversal of 12642604605 is 50640624621.

12642604605 is a `hidden beast` number, since 1 + 2 + 6 + 42 + 6 + 0 + 4 + 605 = 666.

It is not a de Polignac number, because 12642604605 - 2⁷ = 12642604477 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12642604605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1926009 + ... + 1932561.

It is an arithmetic number, because the mean of its divisors is an integer number (363353760).

Almost surely, 2^12642604605 is an apocalyptic number.

12642604605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12642604605 is a deficient number, since it is larger than the sum of its proper divisors (10612036035).

12642604605 is a wasteful number, since it uses less digits than its factorization.

12642604605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7059 (or 7053 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 12642604605 in words is "twelve billion, six hundred forty-two million, six hundred four thousand, six hundred five".