12527472521 has 4 divisors (see below), whose sum is σ = 13186813200. Its totient is φ = 11868131844.

The previous prime is 12527472493. The next prime is 12527472523.

12527472521 is nontrivially palindromic in base 10.

12527472521 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, 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 12527472521 - 2⁶ = 12527472457 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12527472523) 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, 329670311 + ... + 329670348.

It is an arithmetic number, because the mean of its divisors is an integer number (3296703300).

Almost surely, 2^12527472521 is an apocalyptic number.

It is an amenable number.

12527472521 is a deficient number, since it is larger than the sum of its proper divisors (659340679).

12527472521 is an equidigital number, since it uses as much as digits as its factorization.

12527472521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659340678.

The product of its digits is 78400, while the sum is 38.

The spelling of 12527472521 in words is "twelve billion, five hundred twenty-seven million, four hundred seventy-two thousand, five hundred twenty-one".