13656273005 has 4 divisors (see below), whose sum is σ = 16387527612. Its totient is φ = 10925018400.

The previous prime is 13656272999. The next prime is 13656273013. The reversal of 13656273005 is 50037265631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50037265631 = 47 ⋅1064622673.

It can be written as a sum of positive squares in 2 ways, for example, as 6466250569 + 7190022436 = 80413^2 + 84794^2 .

It is not a de Polignac number, because 13656273005 - 2¹⁸ = 13656010861 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13656273005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1365627296 + ... + 1365627305.

It is an arithmetic number, because the mean of its divisors is an integer number (4096881903).

Almost surely, 2^13656273005 is an apocalyptic number.

It is an amenable number.

13656273005 is a deficient number, since it is larger than the sum of its proper divisors (2731254607).

13656273005 is an equidigital number, since it uses as much as digits as its factorization.

13656273005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2731254606.

The product of its (nonzero) digits is 113400, while the sum is 38.

The spelling of 13656273005 in words is "thirteen billion, six hundred fifty-six million, two hundred seventy-three thousand, five".