509418235068 has 48 divisors (see below), whose sum is σ = 1241095564800. Its totient is φ = 162321991744.

The previous prime is 509418235043. The next prime is 509418235087. The reversal of 509418235068 is 860532814905.

It is a super-2 number, since 2×509418235068² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 509418235068.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130743 + ... + 1017806.

It is an arithmetic number, because the mean of its divisors is an integer number (25856157600).

Almost surely, 2^509418235068 is an apocalyptic number.

It is an amenable number.

509418235068 is an abundant number, since it is smaller than the sum of its proper divisors (731677329732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

509418235068 is a wasteful number, since it uses less digits than its factorization.

509418235068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150186 (or 1150184 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 51.

The spelling of 509418235068 in words is "five hundred nine billion, four hundred eighteen million, two hundred thirty-five thousand, sixty-eight".