505347404709 has 24 divisors (see below), whose sum is σ = 784113422880. Its totient is φ = 288655998624.

The previous prime is 505347404641. The next prime is 505347404773. The reversal of 505347404709 is 907404743505.

It is not a de Polignac number, because 505347404709 - 2⁹ = 505347404197 is a prime.

It is a super-2 number, since 2×505347404709² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505347404209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 303754 + ... + 1050219.

It is an arithmetic number, because the mean of its divisors is an integer number (32671392620).

Almost surely, 2^505347404709 is an apocalyptic number.

It is an amenable number.

505347404709 is a deficient number, since it is larger than the sum of its proper divisors (278766018171).

505347404709 is a wasteful number, since it uses less digits than its factorization.

505347404709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356529 (or 1356522 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 48.

The spelling of 505347404709 in words is "five hundred five billion, three hundred forty-seven million, four hundred four thousand, seven hundred nine".