1544052103540 has 12 divisors (see below), whose sum is σ = 3242509417476. Its totient is φ = 617620841408.

The previous prime is 1544052103511. The next prime is 1544052103541. The reversal of 1544052103540 is 453012504451.

It can be written as a sum of positive squares in 2 ways, for example, as 459342351504 + 1084709752036 = 677748^2 + 1041494^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1544052103496 and 1544052103505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1544052103541) 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, 38601302569 + ... + 38601302608.

It is an arithmetic number, because the mean of its divisors is an integer number (270209118123).

Almost surely, 2^{1544052103540} is an apocalyptic number.

1544052103540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1544052103540 is an abundant number, since it is smaller than the sum of its proper divisors (1698457313936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1544052103540 is a wasteful number, since it uses less digits than its factorization.

1544052103540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77202605186 (or 77202605184 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 1544052103540 its reverse (453012504451), we get a palindrome (1997064607991).

The spelling of 1544052103540 in words is "one trillion, five hundred forty-four billion, fifty-two million, one hundred three thousand, five hundred forty".