12508689601 has 4 divisors (see below), whose sum is σ = 12585430192. Its totient is φ = 12431949012.

The previous prime is 12508689527. The next prime is 12508689623. The reversal of 12508689601 is 10698680521.

12508689601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10698680521 = 86533 ⋅123637.

It is a cyclic number.

It is not a de Polignac number, because 12508689601 - 2¹¹ = 12508687553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12508689001) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 38370051 + ... + 38370376.

It is an arithmetic number, because the mean of its divisors is an integer number (3146357548).

Almost surely, 2^12508689601 is an apocalyptic number.

It is an amenable number.

12508689601 is a deficient number, since it is larger than the sum of its proper divisors (76740591).

12508689601 is an equidigital number, since it uses as much as digits as its factorization.

12508689601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76740590.

The product of its (nonzero) digits is 207360, while the sum is 46.

The spelling of 12508689601 in words is "twelve billion, five hundred eight million, six hundred eighty-nine thousand, six hundred one".