12844540783 has 4 divisors (see below), whose sum is σ = 12861420048. Its totient is φ = 12827661520.

The previous prime is 12844540741. The next prime is 12844540799. The reversal of 12844540783 is 38704544821.

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 12844540783 - 2²¹ = 12842443631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12844541783) 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, 8438491 + ... + 8440012.

It is an arithmetic number, because the mean of its divisors is an integer number (3215355012).

Almost surely, 2^12844540783 is an apocalyptic number.

12844540783 is a deficient number, since it is larger than the sum of its proper divisors (16879265).

12844540783 is an equidigital number, since it uses as much as digits as its factorization.

12844540783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16879264.

The product of its (nonzero) digits is 860160, while the sum is 46.

The spelling of 12844540783 in words is "twelve billion, eight hundred forty-four million, five hundred forty thousand, seven hundred eighty-three".