505508619799 has 2 divisors, whose sum is σ = 505508619800. Its totient is φ = 505508619798.

The previous prime is 505508619779. The next prime is 505508619809. The reversal of 505508619799 is 997916805505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505508619799 - 2⁵ = 505508619767 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 505508619799.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505508619719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252754309899 + 252754309900.

It is an arithmetic number, because the mean of its divisors is an integer number (252754309900).

Almost surely, 2^505508619799 is an apocalyptic number.

505508619799 is a deficient number, since it is larger than the sum of its proper divisors (1).

505508619799 is an equidigital number, since it uses as much as digits as its factorization.

505508619799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30618000, while the sum is 64.

The spelling of 505508619799 in words is "five hundred five billion, five hundred eight million, six hundred nineteen thousand, seven hundred ninety-nine".