13433221344 has 48 divisors (see below), whose sum is σ = 35293723920. Its totient is φ = 4473738240.

The previous prime is 13433221343. The next prime is 13433221349. The reversal of 13433221344 is 44312233431.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13433221343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46414 + ... + 170354.

It is an arithmetic number, because the mean of its divisors is an integer number (735285915).

Almost surely, 2^13433221344 is an apocalyptic number.

It is an amenable number.

13433221344 is an abundant number, since it is smaller than the sum of its proper divisors (21860502576).

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

13433221344 is a wasteful number, since it uses less digits than its factorization.

13433221344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125083 (or 125075 counting only the distinct ones).

The product of its digits is 20736, while the sum is 30.

Adding to 13433221344 its reverse (44312233431), we get a palindrome (57745454775).

The spelling of 13433221344 in words is "thirteen billion, four hundred thirty-three million, two hundred twenty-one thousand, three hundred forty-four".