12642630005 has 8 divisors (see below), whose sum is σ = 15186138552. Its totient is φ = 10104115648.

The previous prime is 12642629983. The next prime is 12642630031. The reversal of 12642630005 is 50003624621.

It can be written as a sum of positive squares in 4 ways, for example, as 18309841 + 12624320164 = 4279^2 + 112358^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12642630005 - 2¹⁰ = 12642628981 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12642630005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1242974 + ... + 1253103.

It is an arithmetic number, because the mean of its divisors is an integer number (1898267319).

Almost surely, 2^12642630005 is an apocalyptic number.

It is an amenable number.

12642630005 is a deficient number, since it is larger than the sum of its proper divisors (2543508547).

12642630005 is a wasteful number, since it uses less digits than its factorization.

12642630005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2497095.

The product of its (nonzero) digits is 8640, while the sum is 29.

The spelling of 12642630005 in words is "twelve billion, six hundred forty-two million, six hundred thirty thousand, five".