544404545021 has 8 divisors (see below), whose sum is σ = 568081734720. Its totient is φ = 520727974272.

The previous prime is 544404545017. The next prime is 544404545033. The reversal of 544404545021 is 120545404445.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 544404545021 - 2² = 544404545017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544404545521) 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, 3094925 + ... + 3266093.

It is an arithmetic number, because the mean of its divisors is an integer number (71010216840).

Almost surely, 2^544404545021 is an apocalyptic number.

It is an amenable number.

544404545021 is a deficient number, since it is larger than the sum of its proper divisors (23677189699).

544404545021 is a wasteful number, since it uses less digits than its factorization.

544404545021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309475.

The product of its (nonzero) digits is 256000, while the sum is 38.

Adding to 544404545021 its reverse (120545404445), we get a palindrome (664949949466).

The spelling of 544404545021 in words is "five hundred forty-four billion, four hundred four million, five hundred forty-five thousand, twenty-one".