12795784567 has 4 divisors (see below), whose sum is σ = 12836150136. Its totient is φ = 12755419000.

The previous prime is 12795784549. The next prime is 12795784583. The reversal of 12795784567 is 76548759721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76548759721 = 7 ⋅10935537103.

It is a cyclic number.

It is not a de Polignac number, because 12795784567 - 2⁷ = 12795784439 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 (12795787567) 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, 20182309 + ... + 20182942.

It is an arithmetic number, because the mean of its divisors is an integer number (3209037534).

Almost surely, 2^12795784567 is an apocalyptic number.

12795784567 is a deficient number, since it is larger than the sum of its proper divisors (40365569).

12795784567 is an equidigital number, since it uses as much as digits as its factorization.

12795784567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40365568.

The product of its digits is 29635200, while the sum is 61.

The spelling of 12795784567 in words is "twelve billion, seven hundred ninety-five million, seven hundred eighty-four thousand, five hundred sixty-seven".