13447377272 has 64 divisors (see below), whose sum is σ = 29522085120. Its totient is φ = 5622236928.

The previous prime is 13447377269. The next prime is 13447377299. The reversal of 13447377272 is 27277374431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2277428 + ... + 2283324.

It is an arithmetic number, because the mean of its divisors is an integer number (461282580).

Almost surely, 2^13447377272 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 13447377272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14761042560).

13447377272 is an abundant number, since it is smaller than the sum of its proper divisors (16074707848).

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

13447377272 is a wasteful number, since it uses less digits than its factorization.

13447377272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6900 (or 6896 counting only the distinct ones).

The product of its digits is 1382976, while the sum is 47.

The spelling of 13447377272 in words is "thirteen billion, four hundred forty-seven million, three hundred seventy-seven thousand, two hundred seventy-two".