12786303613 has 4 divisors (see below), whose sum is σ = 12787519680. Its totient is φ = 12785087548.

The previous prime is 12786303587. The next prime is 12786303641. The reversal of 12786303613 is 31630368721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12786303613 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12786303913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 592123 + ... + 613336.

It is an arithmetic number, because the mean of its divisors is an integer number (3196879920).

Almost surely, 2^12786303613 is an apocalyptic number.

It is an amenable number.

12786303613 is a deficient number, since it is larger than the sum of its proper divisors (1216067).

12786303613 is a wasteful number, since it uses less digits than its factorization.

12786303613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216066.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 12786303613 in words is "twelve billion, seven hundred eighty-six million, three hundred three thousand, six hundred thirteen".