12709726973 has 4 divisors (see below), whose sum is σ = 12709963968. Its totient is φ = 12709489980.

The previous prime is 12709726951. The next prime is 12709726979. The reversal of 12709726973 is 37962790721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37962790721 = 29 ⋅1309061749.

It is a cyclic number.

It is not a de Polignac number, because 12709726973 - 2¹⁸ = 12709464829 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 (12709726979) 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, 4508 + ... + 159498.

It is an arithmetic number, because the mean of its divisors is an integer number (3177490992).

Almost surely, 2^12709726973 is an apocalyptic number.

It is an amenable number.

12709726973 is a deficient number, since it is larger than the sum of its proper divisors (236995).

12709726973 is an equidigital number, since it uses as much as digits as its factorization.

12709726973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236994.

The product of its (nonzero) digits is 2000376, while the sum is 53.

The spelling of 12709726973 in words is "twelve billion, seven hundred nine million, seven hundred twenty-six thousand, nine hundred seventy-three".