12521760519 has 16 divisors (see below), whose sum is σ = 17100672512. Its totient is φ = 8145724608.

The previous prime is 12521760481. The next prime is 12521760541. The reversal of 12521760519 is 91506712521.

It is not a de Polignac number, because 12521760519 - 2²⁰ = 12520711943 is a prime.

It is a super-2 number, since 2×12521760519² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12521760619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86274 + ... + 180240.

It is an arithmetic number, because the mean of its divisors is an integer number (1068792032).

Almost surely, 2^12521760519 is an apocalyptic number.

12521760519 is a deficient number, since it is larger than the sum of its proper divisors (4578911993).

12521760519 is a wasteful number, since it uses less digits than its factorization.

12521760519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95046.

The product of its (nonzero) digits is 37800, while the sum is 39.

The spelling of 12521760519 in words is "twelve billion, five hundred twenty-one million, seven hundred sixty thousand, five hundred nineteen".