12757545673 has 4 divisors (see below), whose sum is σ = 12966685828. Its totient is φ = 12548405520.

The previous prime is 12757545667. The next prime is 12757545679. The reversal of 12757545673 is 37654575721.

12757545673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (12757545667) and next prime (12757545679).

It can be written as a sum of positive squares in 2 ways, for example, as 3312232704 + 9445312969 = 57552^2 + 97187^2 .

It is a cyclic number.

It is not a de Polignac number, because 12757545673 - 2²¹ = 12755448521 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 12757545673.

It is not an unprimeable number, because it can be changed into a prime (12757545679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104569986 + ... + 104570107.

It is an arithmetic number, because the mean of its divisors is an integer number (3241671457).

Almost surely, 2^12757545673 is an apocalyptic number.

It is an amenable number.

12757545673 is a deficient number, since it is larger than the sum of its proper divisors (209140155).

12757545673 is an equidigital number, since it uses as much as digits as its factorization.

12757545673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209140154.

The product of its digits is 6174000, while the sum is 52.

The spelling of 12757545673 in words is "twelve billion, seven hundred fifty-seven million, five hundred forty-five thousand, six hundred seventy-three".