12579599597521 has 48 divisors (see below), whose sum is σ = 14653509050880. Its totient is φ = 10707561400320.

The previous prime is 12579599597519. The next prime is 12579599597527.

12579599597521 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12579599597521 - 2¹ = 12579599597519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12579599597527) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1174670115 + ... + 1174680823.

It is an arithmetic number, because the mean of its divisors is an integer number (305281438560).

Almost surely, 2^{12579599597521} is an apocalyptic number.

12579599597521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12579599597521 is a deficient number, since it is larger than the sum of its proper divisors (2073909453359).

12579599597521 is a wasteful number, since it uses less digits than its factorization.

12579599597521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12634 (or 12617 counting only the distinct ones).

The product of its digits is 803722500, while the sum is 76.

The spelling of 12579599597521 in words is "twelve trillion, five hundred seventy-nine billion, five hundred ninety-nine million, five hundred ninety-seven thousand, five hundred twenty-one".