12786367256 has 32 divisors (see below), whose sum is σ = 26448357600. Its totient is φ = 5757461760.

The previous prime is 12786367219. The next prime is 12786367259. The reversal of 12786367256 is 65276368721.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12786367198 and 12786367207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12786367259) 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, 1495076 + ... + 1503603.

It is an arithmetic number, because the mean of its divisors is an integer number (826511175).

Almost surely, 2^12786367256 is an apocalyptic number.

It is an amenable number.

12786367256 is an abundant number, since it is smaller than the sum of its proper divisors (13661990344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12786367256 is a wasteful number, since it uses less digits than its factorization.

12786367256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2998739 (or 2998735 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 53.

The spelling of 12786367256 in words is "twelve billion, seven hundred eighty-six million, three hundred sixty-seven thousand, two hundred fifty-six".