12733236605 has 4 divisors (see below), whose sum is σ = 15279883932. Its totient is φ = 10186589280.

The previous prime is 12733236599. The next prime is 12733236611. The reversal of 12733236605 is 50663233721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50663233721 = 47 ⋅1077941143.

It is an interprime number because it is at equal distance from previous prime (12733236599) and next prime (12733236611).

It can be written as a sum of positive squares in 2 ways, for example, as 1783288441 + 10949948164 = 42229^2 + 104642^2 .

It is not a de Polignac number, because 12733236605 - 2²⁶ = 12666127741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1273323656 + ... + 1273323665.

It is an arithmetic number, because the mean of its divisors is an integer number (3819970983).

Almost surely, 2^12733236605 is an apocalyptic number.

It is an amenable number.

12733236605 is a deficient number, since it is larger than the sum of its proper divisors (2546647327).

12733236605 is an equidigital number, since it uses as much as digits as its factorization.

12733236605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2546647326.

The product of its (nonzero) digits is 136080, while the sum is 38.

The spelling of 12733236605 in words is "twelve billion, seven hundred thirty-three million, two hundred thirty-six thousand, six hundred five".