13043449716 has 144 divisors (see below), whose sum is σ = 36226569792. Its totient is φ = 3619123200.

The previous prime is 13043449621. The next prime is 13043449777. The reversal of 13043449716 is 61794434031.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1406856 + ... + 1416096.

Almost surely, 2^13043449716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13043449716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18113284896).

13043449716 is an abundant number, since it is smaller than the sum of its proper divisors (23183120076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13043449716 is a wasteful number, since it uses less digits than its factorization.

13043449716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9330 (or 9311 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 13043449716 in words is "thirteen billion, forty-three million, four hundred forty-nine thousand, seven hundred sixteen".