509909843229 has 16 divisors (see below), whose sum is σ = 685776459264. Its totient is φ = 337000734000.

The previous prime is 509909843227. The next prime is 509909843281. The reversal of 509909843229 is 922348909905.

It is a happy number.

It is not a de Polignac number, because 509909843229 - 2¹ = 509909843227 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509909843227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 923839 + ... + 1368684.

It is an arithmetic number, because the mean of its divisors is an integer number (42861028704).

Almost surely, 2^509909843229 is an apocalyptic number.

It is an amenable number.

509909843229 is a deficient number, since it is larger than the sum of its proper divisors (175866616035).

509909843229 is a wasteful number, since it uses less digits than its factorization.

509909843229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293168.

The product of its (nonzero) digits is 12597120, while the sum is 60.

The spelling of 509909843229 in words is "five hundred nine billion, nine hundred nine million, eight hundred forty-three thousand, two hundred twenty-nine".