12609602712681 has 32 divisors (see below), whose sum is σ = 18399658878720. Its totient is φ = 7634945439744.

The previous prime is 12609602712677. The next prime is 12609602712689. The reversal of 12609602712681 is 18621720690621.

It is not a de Polignac number, because 12609602712681 - 2² = 12609602712677 is a prime.

It is a super-2 number, since 2×12609602712681² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12609602712689) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9838821 + ... + 11046338.

It is an arithmetic number, because the mean of its divisors is an integer number (574989339960).

Almost surely, 2^{12609602712681} is an apocalyptic number.

It is an amenable number.

12609602712681 is a deficient number, since it is larger than the sum of its proper divisors (5790056166039).

12609602712681 is a wasteful number, since it uses less digits than its factorization.

12609602712681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20885425.

The product of its (nonzero) digits is 870912, while the sum is 51.

The spelling of 12609602712681 in words is "twelve trillion, six hundred nine billion, six hundred two million, seven hundred twelve thousand, six hundred eighty-one".