12738588561659 has 4 divisors (see below), whose sum is σ = 13409040591240. Its totient is φ = 12068136532080.

The previous prime is 12738588561653. The next prime is 12738588561661. The reversal of 12738588561659 is 95616588583721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12738588561659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12738588561653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335226014762 + ... + 335226014799.

It is an arithmetic number, because the mean of its divisors is an integer number (3352260147810).

Almost surely, 2^{12738588561659} is an apocalyptic number.

12738588561659 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12738588561659 is a deficient number, since it is larger than the sum of its proper divisors (670452029581).

12738588561659 is an equidigital number, since it uses as much as digits as its factorization.

12738588561659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670452029580.

The product of its digits is 870912000, while the sum is 74.

The spelling of 12738588561659 in words is "twelve trillion, seven hundred thirty-eight billion, five hundred eighty-eight million, five hundred sixty-one thousand, six hundred fifty-nine".