743945450543 has 2 divisors, whose sum is σ = 743945450544. Its totient is φ = 743945450542.

The previous prime is 743945450497. The next prime is 743945450603. The reversal of 743945450543 is 345054549347.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-743945450543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (743945440543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371972725271 + 371972725272.

It is an arithmetic number, because the mean of its divisors is an integer number (371972725272).

Almost surely, 2^743945450543 is an apocalyptic number.

743945450543 is a deficient number, since it is larger than the sum of its proper divisors (1).

743945450543 is an equidigital number, since it uses as much as digits as its factorization.

743945450543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144000, while the sum is 53.

The spelling of 743945450543 in words is "seven hundred forty-three billion, nine hundred forty-five million, four hundred fifty thousand, five hundred forty-three".