12836340947 has 4 divisors (see below), whose sum is σ = 12858821976. Its totient is φ = 12813859920.

The previous prime is 12836340901. The next prime is 12836340949. The reversal of 12836340947 is 74904363821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12836340947 - 2²² = 12832146643 is a prime.

It is a super-3 number, since 3×12836340947³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12836340949) 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, 11239658 + ... + 11240799.

It is an arithmetic number, because the mean of its divisors is an integer number (3214705494).

Almost surely, 2^12836340947 is an apocalyptic number.

12836340947 is a deficient number, since it is larger than the sum of its proper divisors (22481029).

12836340947 is an equidigital number, since it uses as much as digits as its factorization.

12836340947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22481028.

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 12836340947 in words is "twelve billion, eight hundred thirty-six million, three hundred forty thousand, nine hundred forty-seven".