2544042120543 has 96 divisors (see below), whose sum is σ = 4640834764800. Its totient is φ = 1304468193600.

The previous prime is 2544042120533. The next prime is 2544042120553. The reversal of 2544042120543 is 3450212404452.

2544042120543 is a `hidden beast` number, since 2 + 5 + 4 + 404 + 2 + 1 + 205 + 43 = 666.

It is an interprime number because it is at equal distance from previous prime (2544042120533) and next prime (2544042120553).

It is not a de Polignac number, because 2544042120543 - 2¹⁶ = 2544042055007 is a prime.

It is a super-2 number, since 2×2544042120543² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2544042120498 and 2544042120507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2544042120533) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 355359198 + ... + 355366356.

It is an arithmetic number, because the mean of its divisors is an integer number (48342028800).

Almost surely, 2^{2544042120543} is an apocalyptic number.

2544042120543 is a deficient number, since it is larger than the sum of its proper divisors (2096792644257).

2544042120543 is a wasteful number, since it uses less digits than its factorization.

2544042120543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13753 (or 13750 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

Adding to 2544042120543 its reverse (3450212404452), we get a palindrome (5994254524995).

The spelling of 2544042120543 in words is "two trillion, five hundred forty-four billion, forty-two million, one hundred twenty thousand, five hundred forty-three".