509163594198 has 32 divisors (see below), whose sum is σ = 1175101564416. Its totient is φ = 144062929728.

The previous prime is 509163594197. The next prime is 509163594239. The reversal of 509163594198 is 891495361905.

509163594198 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509163594197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58844911 + ... + 58853562.

It is an arithmetic number, because the mean of its divisors is an integer number (36721923888).

Almost surely, 2^509163594198 is an apocalyptic number.

509163594198 is an abundant number, since it is smaller than the sum of its proper divisors (665937970218).

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

509163594198 is a wasteful number, since it uses less digits than its factorization.

509163594198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117698588.

The product of its (nonzero) digits is 10497600, while the sum is 60.

The spelling of 509163594198 in words is "five hundred nine billion, one hundred sixty-three million, five hundred ninety-four thousand, one hundred ninety-eight".