509854420928 has 28 divisors (see below), whose sum is σ = 1025601860400. Its totient is φ = 251435054592.

The previous prime is 509854420919. The next prime is 509854420931. The reversal of 509854420928 is 829024458905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54560228 + ... + 54569571.

Almost surely, 2^509854420928 is an apocalyptic number.

It is an amenable number.

509854420928 is an abundant number, since it is smaller than the sum of its proper divisors (515747439472).

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

509854420928 is a wasteful number, since it uses less digits than its factorization.

509854420928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109129884 (or 109129874 counting only the distinct ones).

The product of its (nonzero) digits is 8294400, while the sum is 56.

The spelling of 509854420928 in words is "five hundred nine billion, eight hundred fifty-four million, four hundred twenty thousand, nine hundred twenty-eight".