12526411521 has 32 divisors (see below), whose sum is σ = 18581778432. Its totient is φ = 7453903680.

The previous prime is 12526411493. The next prime is 12526411603. The reversal of 12526411521 is 12511462521.

12526411521 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 12526411521 - 2⁵ = 12526411489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12526411021) 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 31 ways as a sum of consecutive naturals, for example, 1837906 + ... + 1844708.

It is an arithmetic number, because the mean of its divisors is an integer number (580680576).

Almost surely, 2^12526411521 is an apocalyptic number.

It is an amenable number.

12526411521 is a deficient number, since it is larger than the sum of its proper divisors (6055366911).

12526411521 is a wasteful number, since it uses less digits than its factorization.

12526411521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8373.

The product of its digits is 4800, while the sum is 30.

The spelling of 12526411521 in words is "twelve billion, five hundred twenty-six million, four hundred eleven thousand, five hundred twenty-one".