12752825721 has 16 divisors (see below), whose sum is σ = 17038553088. Its totient is φ = 8484512400.

The previous prime is 12752825693. The next prime is 12752825773.

It is a happy number.

12752825721 is nontrivially palindromic in base 10.

12752825721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12752825721 - 2¹⁵ = 12752792953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12752825021) 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 15 ways as a sum of consecutive naturals, for example, 4773216 + ... + 4775886.

It is an arithmetic number, because the mean of its divisors is an integer number (1064909568).

Almost surely, 2^12752825721 is an apocalyptic number.

It is an amenable number.

12752825721 is a deficient number, since it is larger than the sum of its proper divisors (4285727367).

12752825721 is a wasteful number, since it uses less digits than its factorization.

12752825721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5332.

The product of its digits is 156800, while the sum is 42.

The spelling of 12752825721 in words is "twelve billion, seven hundred fifty-two million, eight hundred twenty-five thousand, seven hundred twenty-one".