12646013173 has 8 divisors (see below), whose sum is σ = 12877170048. Its totient is φ = 12416948544.

The previous prime is 12646013167. The next prime is 12646013183. The reversal of 12646013173 is 37131064621.

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 12646013173 - 2²⁹ = 12109142261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12646013153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510861 + ... + 535042.

It is an arithmetic number, because the mean of its divisors is an integer number (1609646256).

Almost surely, 2^12646013173 is an apocalyptic number.

It is an amenable number.

12646013173 is a deficient number, since it is larger than the sum of its proper divisors (231156875).

12646013173 is a wasteful number, since it uses less digits than its factorization.

12646013173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046123.

The product of its (nonzero) digits is 18144, while the sum is 34.

Adding to 12646013173 its reverse (37131064621), we get a palindrome (49777077794).

The spelling of 12646013173 in words is "twelve billion, six hundred forty-six million, thirteen thousand, one hundred seventy-three".