1543322451441 has 32 divisors (see below), whose sum is σ = 2117516083200. Its totient is φ = 999343802880.

The previous prime is 1543322451401. The next prime is 1543322451467. The reversal of 1543322451441 is 1441542233451.

It is not a de Polignac number, because 1543322451441 - 2¹⁹ = 1543321927153 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1543322451441.

It is not an unprimeable number, because it can be changed into a prime (1543322451401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53275201 + ... + 53304161.

It is an arithmetic number, because the mean of its divisors is an integer number (66172377600).

Almost surely, 2^{1543322451441} is an apocalyptic number.

It is an amenable number.

1543322451441 is a deficient number, since it is larger than the sum of its proper divisors (574193631759).

1543322451441 is a wasteful number, since it uses less digits than its factorization.

1543322451441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31869.

The product of its digits is 230400, while the sum is 39.

Adding to 1543322451441 its reverse (1441542233451), we get a palindrome (2984864684892).

The spelling of 1543322451441 in words is "one trillion, five hundred forty-three billion, three hundred twenty-two million, four hundred fifty-one thousand, four hundred forty-one".