13249720841 has 16 divisors (see below), whose sum is σ = 15204153600. Its totient is φ = 11310788160.

The previous prime is 13249720829. The next prime is 13249720859. The reversal of 13249720841 is 14802794231.

13249720841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13249720841 - 2⁶ = 13249720777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13249720811) 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 15 ways as a sum of consecutive naturals, for example, 1903235 + ... + 1910183.

It is an arithmetic number, because the mean of its divisors is an integer number (950259600).

Almost surely, 2^13249720841 is an apocalyptic number.

It is an amenable number.

13249720841 is a deficient number, since it is larger than the sum of its proper divisors (1954432759).

13249720841 is an equidigital number, since it uses as much as digits as its factorization.

13249720841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8024.

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 13249720841 in words is "thirteen billion, two hundred forty-nine million, seven hundred twenty thousand, eight hundred forty-one".