505405463539 has 2 divisors, whose sum is σ = 505405463540. Its totient is φ = 505405463538.

The previous prime is 505405463503. The next prime is 505405463543. The reversal of 505405463539 is 935364504505.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505405463539 - 2¹⁹ = 505404939251 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 505405463492 and 505405463501.

It is not a weakly prime, because it can be changed into another prime (505405463039) 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, 252702731769 + 252702731770.

It is an arithmetic number, because the mean of its divisors is an integer number (252702731770).

Almost surely, 2^505405463539 is an apocalyptic number.

505405463539 is a deficient number, since it is larger than the sum of its proper divisors (1).

505405463539 is an equidigital number, since it uses as much as digits as its factorization.

505405463539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860000, while the sum is 49.

The spelling of 505405463539 in words is "five hundred five billion, four hundred five million, four hundred sixty-three thousand, five hundred thirty-nine".