505363040243 has 2 divisors, whose sum is σ = 505363040244. Its totient is φ = 505363040242.

The previous prime is 505363040219. The next prime is 505363040261. The reversal of 505363040243 is 342040363505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505363040243 - 2²⁶ = 505295931379 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (505363040213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252681520121 + 252681520122.

It is an arithmetic number, because the mean of its divisors is an integer number (252681520122).

Almost surely, 2^505363040243 is an apocalyptic number.

505363040243 is a deficient number, since it is larger than the sum of its proper divisors (1).

505363040243 is an equidigital number, since it uses as much as digits as its factorization.

505363040243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129600, while the sum is 35.

The spelling of 505363040243 in words is "five hundred five billion, three hundred sixty-three million, forty thousand, two hundred forty-three".