509871968 has 24 divisors (see below), whose sum is σ = 1038426480. Its totient is φ = 246144640.

The previous prime is 509871959. The next prime is 509871979. The reversal of 509871968 is 869178905.

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, 273788 + ... + 275643.

It is an arithmetic number, because the mean of its divisors is an integer number (43267770).

Almost surely, 2^509871968 is an apocalyptic number.

509871968 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

509871968 is an abundant number, since it is smaller than the sum of its proper divisors (528554512).

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

509871968 is a wasteful number, since it uses less digits than its factorization.

509871968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549470 (or 549462 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 53.

The square root of 509871968 is about 22580.3447272180. The cubic root of 509871968 is about 798.8901108948.

The spelling of 509871968 in words is "five hundred nine million, eight hundred seventy-one thousand, nine hundred sixty-eight".