509418968 has 8 divisors (see below), whose sum is σ = 955160580. Its totient is φ = 254709480.

The previous prime is 509418967. The next prime is 509419003. The reversal of 509418968 is 869814905.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509418967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31838678 + ... + 31838693.

Almost surely, 2^509418968 is an apocalyptic number.

It is an amenable number.

509418968 is a deficient number, since it is larger than the sum of its proper divisors (445741612).

509418968 is a wasteful number, since it uses less digits than its factorization.

509418968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63677377 (or 63677373 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 509418968 is about 22570.3116504846. The cubic root of 509418968 is about 798.6534472663.

The spelling of 509418968 in words is "five hundred nine million, four hundred eighteen thousand, nine hundred sixty-eight".