12606557089 has 4 divisors (see below), whose sum is σ = 14407493824. Its totient is φ = 10805620356.

The previous prime is 12606557087. The next prime is 12606557113. The reversal of 12606557089 is 98075560621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12606557089 - 2¹ = 12606557087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12606557087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 900468357 + ... + 900468370.

It is an arithmetic number, because the mean of its divisors is an integer number (3601873456).

Almost surely, 2^12606557089 is an apocalyptic number.

It is an amenable number.

12606557089 is a deficient number, since it is larger than the sum of its proper divisors (1800936735).

12606557089 is an equidigital number, since it uses as much as digits as its factorization.

12606557089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800936734.

The product of its (nonzero) digits is 907200, while the sum is 49.

The spelling of 12606557089 in words is "twelve billion, six hundred six million, five hundred fifty-seven thousand, eighty-nine".