13091049727 has 4 divisors (see below), whose sum is σ = 14961199696. Its totient is φ = 11220899760.

The previous prime is 13091049707. The next prime is 13091049749. The reversal of 13091049727 is 72794019031.

It is a happy number.

13091049727 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-13091049727 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 (13091049707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 935074974 + ... + 935074987.

It is an arithmetic number, because the mean of its divisors is an integer number (3740299924).

Almost surely, 2^13091049727 is an apocalyptic number.

13091049727 is a deficient number, since it is larger than the sum of its proper divisors (1870149969).

13091049727 is an equidigital number, since it uses as much as digits as its factorization.

13091049727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870149968.

The product of its (nonzero) digits is 95256, while the sum is 43.

The spelling of 13091049727 in words is "thirteen billion, ninety-one million, forty-nine thousand, seven hundred twenty-seven".