505992434743 has 2 divisors, whose sum is σ = 505992434744. Its totient is φ = 505992434742.

The previous prime is 505992434669. The next prime is 505992434747. The reversal of 505992434743 is 347434299505.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505992434743 is a prime.

It is a super-2 number, since 2×505992434743² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505992434747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252996217371 + 252996217372.

It is an arithmetic number, because the mean of its divisors is an integer number (252996217372).

Almost surely, 2^505992434743 is an apocalyptic number.

505992434743 is a deficient number, since it is larger than the sum of its proper divisors (1).

505992434743 is an equidigital number, since it uses as much as digits as its factorization.

505992434743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16329600, while the sum is 55.

The spelling of 505992434743 in words is "five hundred five billion, nine hundred ninety-two million, four hundred thirty-four thousand, seven hundred forty-three".