13144346791 has 4 divisors (see below), whose sum is σ = 13424013792. Its totient is φ = 12864679792.

The previous prime is 13144346777. The next prime is 13144346833. The reversal of 13144346791 is 19764344131.

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 13144346791 - 2⁹ = 13144346279 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 (13144346731) by changing a digit.

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, 139833430 + ... + 139833523.

It is an arithmetic number, because the mean of its divisors is an integer number (3356003448).

Almost surely, 2^13144346791 is an apocalyptic number.

13144346791 is a deficient number, since it is larger than the sum of its proper divisors (279667001).

13144346791 is an equidigital number, since it uses as much as digits as its factorization.

13144346791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279667000.

The product of its digits is 217728, while the sum is 43.

The spelling of 13144346791 in words is "thirteen billion, one hundred forty-four million, three hundred forty-six thousand, seven hundred ninety-one".