5423721356441 has 4 divisors (see below), whose sum is σ = 5423726190372. Its totient is φ = 5423716522512.

The previous prime is 5423721356323. The next prime is 5423721356453. The reversal of 5423721356441 is 1446531273245.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3586557980041 + 1837163376400 = 1893821^2 + 1355420^2 .

It is a cyclic number.

It is not a de Polignac number, because 5423721356441 - 2²⁶ = 5423654247577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5423721356741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238691 + ... + 3302183.

It is an arithmetic number, because the mean of its divisors is an integer number (1355931547593).

Almost surely, 2^{5423721356441} is an apocalyptic number.

It is an amenable number.

5423721356441 is a deficient number, since it is larger than the sum of its proper divisors (4833931).

5423721356441 is a wasteful number, since it uses less digits than its factorization.

5423721356441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4833930.

The product of its digits is 2419200, while the sum is 47.

The spelling of 5423721356441 in words is "five trillion, four hundred twenty-three billion, seven hundred twenty-one million, three hundred fifty-six thousand, four hundred forty-one".