544643471620340 has 24 divisors (see below), whose sum is σ = 1143752642188800. Its totient is φ = 217857131165088.

The previous prime is 544643471620333. The next prime is 544643471620343. The reversal of 544643471620340 is 43026174346445.

It is a super-2 number, since 2×544643471620340² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544643471620343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1734089 + ... + 33049871.

It is an arithmetic number, because the mean of its divisors is an integer number (47656360091200).

Almost surely, 2^{544643471620340} is an apocalyptic number.

It is an amenable number.

544643471620340 is an abundant number, since it is smaller than the sum of its proper divisors (599109170568460).

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

544643471620340 is a wasteful number, since it uses less digits than its factorization.

544643471620340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32185391 (or 32185389 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 53.

The spelling of 544643471620340 in words is "five hundred forty-four trillion, six hundred forty-three billion, four hundred seventy-one million, six hundred twenty thousand, three hundred forty".