743485409543 has 2 divisors, whose sum is σ = 743485409544. Its totient is φ = 743485409542.

The previous prime is 743485409531. The next prime is 743485409581. The reversal of 743485409543 is 345904584347.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-743485409543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (743485459543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371742704771 + 371742704772.

It is an arithmetic number, because the mean of its divisors is an integer number (371742704772).

Almost surely, 2^743485409543 is an apocalyptic number.

743485409543 is a deficient number, since it is larger than the sum of its proper divisors (1).

743485409543 is an equidigital number, since it uses as much as digits as its factorization.

743485409543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29030400, while the sum is 56.

The spelling of 743485409543 in words is "seven hundred forty-three billion, four hundred eighty-five million, four hundred nine thousand, five hundred forty-three".