13447298560 has 80 divisors (see below), whose sum is σ = 32316570000. Its totient is φ = 5366480896.

The previous prime is 13447298549. The next prime is 13447298569. The reversal of 13447298560 is 6589274431.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13447298569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1143591 + ... + 1155289.

It is an arithmetic number, because the mean of its divisors is an integer number (403957125).

It is a 1-persistent number, because it is pandigital, but 2⋅13447298560 = 26894597120 is not.

Almost surely, 2^13447298560 is an apocalyptic number.

13447298560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13447298560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16158285000).

13447298560 is an abundant number, since it is smaller than the sum of its proper divisors (18869271440).

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

13447298560 is an equidigital number, since it uses as much as digits as its factorization.

13447298560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12171 (or 12155 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 13447298560 in words is "thirteen billion, four hundred forty-seven million, two hundred ninety-eight thousand, five hundred sixty".