509061912 has 64 divisors (see below), whose sum is σ = 1336089600. Its totient is φ = 161416320.

The previous prime is 509061869. The next prime is 509061929. The reversal of 509061912 is 219160905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38098 + ... + 49694.

It is an arithmetic number, because the mean of its divisors is an integer number (20876400).

Almost surely, 2^509061912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 509061912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (668044800).

509061912 is an abundant number, since it is smaller than the sum of its proper divisors (827027688).

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

509061912 is a wasteful number, since it uses less digits than its factorization.

509061912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11696 (or 11692 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 509061912 is about 22562.4004042123. The cubic root of 509061912 is about 798.4668093685.

The spelling of 509061912 in words is "five hundred nine million, sixty-one thousand, nine hundred twelve".