12587910641 has 4 divisors (see below), whose sum is σ = 12589767792. Its totient is φ = 12586053492.

The previous prime is 12587910619. The next prime is 12587910653. The reversal of 12587910641 is 14601978521.

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 12587910641 - 2¹⁰ = 12587909617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12587910592 and 12587910601.

It is not an unprimeable number, because it can be changed into a prime (12587910611) 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, 918371 + ... + 931976.

It is an arithmetic number, because the mean of its divisors is an integer number (3147441948).

Almost surely, 2^12587910641 is an apocalyptic number.

It is an amenable number.

12587910641 is a deficient number, since it is larger than the sum of its proper divisors (1857151).

12587910641 is an equidigital number, since it uses as much as digits as its factorization.

12587910641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857150.

The product of its (nonzero) digits is 120960, while the sum is 44.

The spelling of 12587910641 in words is "twelve billion, five hundred eighty-seven million, nine hundred ten thousand, six hundred forty-one".