12641070775 has 6 divisors (see below), whose sum is σ = 15674927792. Its totient is φ = 10112856600.

The previous prime is 12641070763. The next prime is 12641070781. The reversal of 12641070775 is 57707014621.

It is a happy number.

It is not a de Polignac number, because 12641070775 - 2⁹ = 12641070263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 252821391 + ... + 252821440.

Almost surely, 2^12641070775 is an apocalyptic number.

12641070775 is a deficient number, since it is larger than the sum of its proper divisors (3033857017).

12641070775 is an equidigital number, since it uses as much as digits as its factorization.

12641070775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505642841 (or 505642836 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 40.

The spelling of 12641070775 in words is "twelve billion, six hundred forty-one million, seventy thousand, seven hundred seventy-five".