5205440144321 has 16 divisors (see below), whose sum is σ = 5231058686208. Its totient is φ = 5179900387200.

The previous prime is 5205440144273. The next prime is 5205440144329. The reversal of 5205440144321 is 1234410445025.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 5205440144321 - 2⁶ = 5205440144257 is a prime.

It is a super-2 number, since 2×5205440144321² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5205440144329) 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 15 ways as a sum of consecutive naturals, for example, 302088776 + ... + 302106006.

It is an arithmetic number, because the mean of its divisors is an integer number (326941167888).

Almost surely, 2^{5205440144321} is an apocalyptic number.

It is an amenable number.

5205440144321 is a deficient number, since it is larger than the sum of its proper divisors (25618541887).

5205440144321 is a wasteful number, since it uses less digits than its factorization.

5205440144321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19432.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 5205440144321 its reverse (1234410445025), we get a palindrome (6439850589346).

The spelling of 5205440144321 in words is "five trillion, two hundred five billion, four hundred forty million, one hundred forty-four thousand, three hundred twenty-one".