12642620045 has 16 divisors (see below), whose sum is σ = 17421410880. Its totient is φ = 8710704000.

The previous prime is 12642619999. The next prime is 12642620069. The reversal of 12642620045 is 54002624621.

12642620045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12642620045 - 2¹⁸ = 12642357901 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12642619993 and 12642620020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6048056 + ... + 6050145.

It is an arithmetic number, because the mean of its divisors is an integer number (1088838180).

Almost surely, 2^12642620045 is an apocalyptic number.

It is an amenable number.

12642620045 is a deficient number, since it is larger than the sum of its proper divisors (4778790835).

12642620045 is a wasteful number, since it uses less digits than its factorization.

12642620045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12098236.

The product of its (nonzero) digits is 23040, while the sum is 32.

The spelling of 12642620045 in words is "twelve billion, six hundred forty-two million, six hundred twenty thousand, forty-five".