13518480349 has 4 divisors (see below), whose sum is σ = 14747433120. Its totient is φ = 12289527580.

The previous prime is 13518480347. The next prime is 13518480383. The reversal of 13518480349 is 94308481531.

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, and also an emirpimes, since its reverse is a distinct semiprime: 94308481531 = 11 ⋅8573498321.

It is not a de Polignac number, because 13518480349 - 2¹ = 13518480347 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13518480299 and 13518480308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13518480347) 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, 614476369 + ... + 614476390.

It is an arithmetic number, because the mean of its divisors is an integer number (3686858280).

Almost surely, 2^13518480349 is an apocalyptic number.

It is an amenable number.

13518480349 is a deficient number, since it is larger than the sum of its proper divisors (1228952771).

13518480349 is a wasteful number, since it uses less digits than its factorization.

13518480349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228952770.

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 13518480349 in words is "thirteen billion, five hundred eighteen million, four hundred eighty thousand, three hundred forty-nine".