13257264828856 has 32 divisors (see below), whose sum is σ = 26312534463600. Its totient is φ = 6251220299520.

The previous prime is 13257264828833. The next prime is 13257264828859. The reversal of 13257264828856 is 65882846275231.

It is a junction number, because it is equal to n+sod(n) for n = 13257264828791 and 13257264828800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13257264828859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 664447965 + ... + 664467916.

Almost surely, 2^{13257264828856} is an apocalyptic number.

It is an amenable number.

13257264828856 is a deficient number, since it is larger than the sum of its proper divisors (13055269634744).

13257264828856 is a wasteful number, since it uses less digits than its factorization.

13257264828856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328915959 (or 1328915955 counting only the distinct ones).

The product of its digits is 309657600, while the sum is 67.

The spelling of 13257264828856 in words is "thirteen trillion, two hundred fifty-seven billion, two hundred sixty-four million, eight hundred twenty-eight thousand, eight hundred fifty-six".