13679444449 has 12 divisors (see below), whose sum is σ = 15455372400. Its totient is φ = 12007027760.

The previous prime is 13679444413. The next prime is 13679444453. The reversal of 13679444449 is 94444497631.

It is not a de Polignac number, because 13679444449 - 2⁷ = 13679444321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13679444449.

It is not an unprimeable number, because it can be changed into a prime (13679444479) 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 11 ways as a sum of consecutive naturals, for example, 730099 + ... + 748600.

It is an arithmetic number, because the mean of its divisors is an integer number (1287947700).

Almost surely, 2^13679444449 is an apocalyptic number.

It is an amenable number.

13679444449 is a deficient number, since it is larger than the sum of its proper divisors (1775927951).

13679444449 is a wasteful number, since it uses less digits than its factorization.

13679444449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1478768 (or 1478739 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 55.

The spelling of 13679444449 in words is "thirteen billion, six hundred seventy-nine million, four hundred forty-four thousand, four hundred forty-nine".