12605570771 has 8 divisors (see below), whose sum is σ = 13348823184. Its totient is φ = 11862512640.

The previous prime is 12605570743. The next prime is 12605570797. The reversal of 12605570771 is 17707550621.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12605570771 - 2¹⁰ = 12605569747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12605530771) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 97616 + ... + 186386.

It is an arithmetic number, because the mean of its divisors is an integer number (1668602898).

Almost surely, 2^12605570771 is an apocalyptic number.

12605570771 is a deficient number, since it is larger than the sum of its proper divisors (743252413).

12605570771 is an equidigital number, since it uses as much as digits as its factorization.

12605570771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97141.

The product of its (nonzero) digits is 102900, while the sum is 41.

The spelling of 12605570771 in words is "twelve billion, six hundred five million, five hundred seventy thousand, seven hundred seventy-one".