12646062586873 has 4 divisors (see below), whose sum is σ = 12676100740708. Its totient is φ = 12616024433040.

The previous prime is 12646062586841. The next prime is 12646062586931. The reversal of 12646062586873 is 37868526064621.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 260540826624 + 12385521760249 = 510432^2 + 3519307^2 .

It is a cyclic number.

It is not a de Polignac number, because 12646062586873 - 2⁵ = 12646062586841 is a prime.

It is a super-2 number, since 2×12646062586873² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12646062586373) 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, 15019076286 + ... + 15019077127.

It is an arithmetic number, because the mean of its divisors is an integer number (3169025185177).

Almost surely, 2^{12646062586873} is an apocalyptic number.

It is an amenable number.

12646062586873 is a deficient number, since it is larger than the sum of its proper divisors (30038153835).

12646062586873 is an equidigital number, since it uses as much as digits as its factorization.

12646062586873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30038153834.

The product of its (nonzero) digits is 139345920, while the sum is 64.

The spelling of 12646062586873 in words is "twelve trillion, six hundred forty-six billion, sixty-two million, five hundred eighty-six thousand, eight hundred seventy-three".