33421012640344 has 96 divisors (see below), whose sum is σ = 75488105131200. Its totient is φ = 13814868641280.

The previous prime is 33421012640341. The next prime is 33421012640363. The reversal of 33421012640344 is 44304621012433.

It is a super-2 number, since 2×33421012640344² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33421012640341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9291249 + ... + 12376159.

It is an arithmetic number, because the mean of its divisors is an integer number (786334428450).

Almost surely, 2^{33421012640344} 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 33421012640344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37744052565600).

33421012640344 is an abundant number, since it is smaller than the sum of its proper divisors (42067092490856).

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

33421012640344 is a wasteful number, since it uses less digits than its factorization.

33421012640344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085913 (or 3085902 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 37.

Adding to 33421012640344 its reverse (44304621012433), we get a palindrome (77725633652777).

The spelling of 33421012640344 in words is "thirty-three trillion, four hundred twenty-one billion, twelve million, six hundred forty thousand, three hundred forty-four".