12730605773 has 4 divisors (see below), whose sum is σ = 12745358208. Its totient is φ = 12715853340.

The previous prime is 12730605763. The next prime is 12730605779. The reversal of 12730605773 is 37750603721.

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.

It is a cyclic number.

It is not a de Polignac number, because 12730605773 - 2¹² = 12730601677 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12730605773.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12730605779) 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 3 ways as a sum of consecutive naturals, for example, 7374923 + ... + 7376648.

It is an arithmetic number, because the mean of its divisors is an integer number (3186339552).

Almost surely, 2^12730605773 is an apocalyptic number.

It is an amenable number.

12730605773 is a deficient number, since it is larger than the sum of its proper divisors (14752435).

12730605773 is an equidigital number, since it uses as much as digits as its factorization.

12730605773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14752434.

The product of its (nonzero) digits is 185220, while the sum is 41.

The spelling of 12730605773 in words is "twelve billion, seven hundred thirty million, six hundred five thousand, seven hundred seventy-three".