1545324021441 has 12 divisors (see below), whose sum is σ = 2292462662932. Its totient is φ = 1002372338016.

The previous prime is 1545324021407. The next prime is 1545324021491. The reversal of 1545324021441 is 1441204235451.

1545324021441 is a `hidden beast` number, since 1 + 545 + 32 + 40 + 2 + 1 + 4 + 41 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1057112985600 + 488211035841 = 1028160^2 + 698721^2 .

It is not a de Polignac number, because 1545324021441 - 2¹⁵ = 1545323988673 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1545324021396 and 1545324021405.

It is not an unprimeable number, because it can be changed into a prime (1545324021491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2320306006 + ... + 2320306671.

Almost surely, 2^{1545324021441} is an apocalyptic number.

It is an amenable number.

1545324021441 is a deficient number, since it is larger than the sum of its proper divisors (747138641491).

1545324021441 is a wasteful number, since it uses less digits than its factorization.

1545324021441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4640612720 (or 4640612717 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

Adding to 1545324021441 its reverse (1441204235451), we get a palindrome (2986528256892).

The spelling of 1545324021441 in words is "one trillion, five hundred forty-five billion, three hundred twenty-four million, twenty-one thousand, four hundred forty-one".