505842374459 has 2 divisors, whose sum is σ = 505842374460. Its totient is φ = 505842374458.

The previous prime is 505842374381. The next prime is 505842374533. The reversal of 505842374459 is 954473248505.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505842374459 is a prime.

It is not a weakly prime, because it can be changed into another prime (505842373459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252921187229 + 252921187230.

It is an arithmetic number, because the mean of its divisors is an integer number (252921187230).

Almost surely, 2^505842374459 is an apocalyptic number.

505842374459 is a deficient number, since it is larger than the sum of its proper divisors (1).

505842374459 is an equidigital number, since it uses as much as digits as its factorization.

505842374459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192000, while the sum is 56.

The spelling of 505842374459 in words is "five hundred five billion, eight hundred forty-two million, three hundred seventy-four thousand, four hundred fifty-nine".