13359813491 has 4 divisors (see below), whose sum is σ = 13670506872. Its totient is φ = 13049120112.

The previous prime is 13359813473. The next prime is 13359813499. The reversal of 13359813491 is 19431895331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19431895331 = 73 ⋅266190347.

It is a cyclic number.

It is not a de Polignac number, because 13359813491 - 2⁶ = 13359813427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13359813499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155346626 + ... + 155346711.

It is an arithmetic number, because the mean of its divisors is an integer number (3417626718).

Almost surely, 2^13359813491 is an apocalyptic number.

13359813491 is a deficient number, since it is larger than the sum of its proper divisors (310693381).

13359813491 is an equidigital number, since it uses as much as digits as its factorization.

13359813491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310693380.

The product of its digits is 349920, while the sum is 47.

The spelling of 13359813491 in words is "thirteen billion, three hundred fifty-nine million, eight hundred thirteen thousand, four hundred ninety-one".