2541943295543 has 2 divisors, whose sum is σ = 2541943295544. Its totient is φ = 2541943295542.

The previous prime is 2541943295533. The next prime is 2541943295569. The reversal of 2541943295543 is 3455923491452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2541943295543 - 2³² = 2537648328247 is a prime.

It is a super-2 number, since 2×2541943295543² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2541943295533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1270971647771 + 1270971647772.

It is an arithmetic number, because the mean of its divisors is an integer number (1270971647772).

Almost surely, 2^{2541943295543} is an apocalyptic number.

2541943295543 is a deficient number, since it is larger than the sum of its proper divisors (1).

2541943295543 is an equidigital number, since it uses as much as digits as its factorization.

2541943295543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328000, while the sum is 56.

The spelling of 2541943295543 in words is "two trillion, five hundred forty-one billion, nine hundred forty-three million, two hundred ninety-five thousand, five hundred forty-three".