509938683942 has 8 divisors (see below), whose sum is σ = 1019877367896. Its totient is φ = 169979561312.

The previous prime is 509938683901. The next prime is 509938683997. The reversal of 509938683942 is 249386839905.

It is a sphenic number, since it is the product of 3 distinct primes.

509938683942 is an admirable number.

It is a super-3 number, since 3×509938683942³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 42494890323 + ... + 42494890334.

It is an arithmetic number, because the mean of its divisors is an integer number (127484670987).

Almost surely, 2^509938683942 is an apocalyptic number.

509938683942 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

509938683942 is a wasteful number, since it uses less digits than its factorization.

509938683942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84989780662.

The product of its (nonzero) digits is 100776960, while the sum is 66.

The spelling of 509938683942 in words is "five hundred nine billion, nine hundred thirty-eight million, six hundred eighty-three thousand, nine hundred forty-two".