512878009 has 8 divisors (see below), whose sum is σ = 586692288. Its totient is φ = 439200240.

The previous prime is 512877997. The next prime is 512878013. The reversal of 512878009 is 900878215.

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

It is a cyclic number.

It is not a de Polignac number, because 512878009 - 2⁵ = 512877977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (512878409) 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 in 7 ways as a sum of consecutive naturals, for example, 25942 + ... + 41215.

It is an arithmetic number, because the mean of its divisors is an integer number (73336536).

Almost surely, 2^512878009 is an apocalyptic number.

It is an amenable number.

512878009 is a deficient number, since it is larger than the sum of its proper divisors (73814279).

512878009 is a wasteful number, since it uses less digits than its factorization.

512878009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68255.

The product of its (nonzero) digits is 40320, while the sum is 40.

The square root of 512878009 is about 22646.8101285810. The cubic root of 512878009 is about 800.4570352030.

The spelling of 512878009 in words is "five hundred twelve million, eight hundred seventy-eight thousand, nine".