505717011859 has 2 divisors, whose sum is σ = 505717011860. Its totient is φ = 505717011858.

The previous prime is 505717011781. The next prime is 505717011911. The reversal of 505717011859 is 958110717505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505717011859 - 2¹³ = 505717003667 is a prime.

It is not a weakly prime, because it can be changed into another prime (505717051859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252858505929 + 252858505930.

It is an arithmetic number, because the mean of its divisors is an integer number (252858505930).

Almost surely, 2^505717011859 is an apocalyptic number.

505717011859 is a deficient number, since it is larger than the sum of its proper divisors (1).

505717011859 is an equidigital number, since it uses as much as digits as its factorization.

505717011859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 441000, while the sum is 49.

The spelling of 505717011859 in words is "five hundred five billion, seven hundred seventeen million, eleven thousand, eight hundred fifty-nine".