13280739349 has 4 divisors (see below), whose sum is σ = 13302619264. Its totient is φ = 13258859436.

The previous prime is 13280739347. The next prime is 13280739361. The reversal of 13280739349 is 94393708231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13280739349 - 2¹ = 13280739347 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 (13280739347) 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, 10939047 + ... + 10940260.

It is an arithmetic number, because the mean of its divisors is an integer number (3325654816).

Almost surely, 2^13280739349 is an apocalyptic number.

It is an amenable number.

13280739349 is a deficient number, since it is larger than the sum of its proper divisors (21879915).

13280739349 is an equidigital number, since it uses as much as digits as its factorization.

13280739349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21879914.

The product of its (nonzero) digits is 979776, while the sum is 49.

The spelling of 13280739349 in words is "thirteen billion, two hundred eighty million, seven hundred thirty-nine thousand, three hundred forty-nine".