12513756319 has 16 divisors (see below), whose sum is σ = 12819824640. Its totient is φ = 12211837120.

The previous prime is 12513756313. The next prime is 12513756323. The reversal of 12513756319 is 91365731521.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12513756319 is a prime.

It is a super-2 number, since 2×12513756319² (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 (12513756313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3723762 + ... + 3727120.

It is an arithmetic number, because the mean of its divisors is an integer number (801239040).

Almost surely, 2^12513756319 is an apocalyptic number.

12513756319 is a deficient number, since it is larger than the sum of its proper divisors (306068321).

12513756319 is a wasteful number, since it uses less digits than its factorization.

12513756319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3950.

The product of its digits is 170100, while the sum is 43.

The spelling of 12513756319 in words is "twelve billion, five hundred thirteen million, seven hundred fifty-six thousand, three hundred nineteen".