12513263756357 has 16 divisors (see below), whose sum is σ = 15403000620672. Its totient is φ = 9899279611200.

The previous prime is 12513263756351. The next prime is 12513263756359. The reversal of 12513263756357 is 75365736231521.

It is not a de Polignac number, because 12513263756357 - 2⁴ = 12513263756341 is a prime.

It is a super-2 number, since 2×12513263756357² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12513263756351) 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, 8515019 + ... + 9875832.

It is an arithmetic number, because the mean of its divisors is an integer number (962687538792).

Almost surely, 2^{12513263756357} is an apocalyptic number.

It is an amenable number.

12513263756357 is a deficient number, since it is larger than the sum of its proper divisors (2889736864315).

12513263756357 is a wasteful number, since it uses less digits than its factorization.

12513263756357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18398348.

The product of its digits is 23814000, while the sum is 56.

Adding to 12513263756357 its reverse (75365736231521), we get a palindrome (87878999987878).

The spelling of 12513263756357 in words is "twelve trillion, five hundred thirteen billion, two hundred sixty-three million, seven hundred fifty-six thousand, three hundred fifty-seven".