502047353809 has 9 divisors (see below), whose sum is σ = 504377170129. Its totient is φ = 499728259840.

The previous prime is 502047353761. The next prime is 502047353831. The reversal of 502047353809 is 908353740205.

The square root of 502047353809 is 708553.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 50366580625 + 451680773184 = 224425^2 + 672072^2 .

It is not a de Polignac number, because 502047353809 - 2⁷ = 502047353681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (502047353849) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 165091329 + ... + 165094369.

Almost surely, 2^502047353809 is an apocalyptic number.

502047353809 is the 708553-rd square number.

502047353809 is the 354277-th centered octagonal number.

It is an amenable number.

502047353809 is a deficient number, since it is larger than the sum of its proper divisors (2329816320).

502047353809 is an frugal number, since it uses more digits than its factorization.

502047353809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6548 (or 3274 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 502047353809 in words is "five hundred two billion, forty-seven million, three hundred fifty-three thousand, eight hundred nine".