505351440421199 has 2 divisors, whose sum is σ = 505351440421200. Its totient is φ = 505351440421198.

The previous prime is 505351440421187. The next prime is 505351440421253. The reversal of 505351440421199 is 991124044153505.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 505351440421199 - 2⁴⁴ = 487759254376783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 505351440421199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505351440421099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252675720210599 + 252675720210600.

It is an arithmetic number, because the mean of its divisors is an integer number (252675720210600).

Almost surely, 2^{505351440421199} is an apocalyptic number.

505351440421199 is a deficient number, since it is larger than the sum of its proper divisors (1).

505351440421199 is an equidigital number, since it uses as much as digits as its factorization.

505351440421199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888000, while the sum is 53.

The spelling of 505351440421199 in words is "five hundred five trillion, three hundred fifty-one billion, four hundred forty million, four hundred twenty-one thousand, one hundred ninety-nine".