509331068 has 6 divisors (see below), whose sum is σ = 891329376. Its totient is φ = 254665532.

The previous prime is 509331061. The next prime is 509331071. The reversal of 509331068 is 860133905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (509331061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63666380 + ... + 63666387.

It is an arithmetic number, because the mean of its divisors is an integer number (148554896).

Almost surely, 2^509331068 is an apocalyptic number.

It is an amenable number.

509331068 is a deficient number, since it is larger than the sum of its proper divisors (381998308).

509331068 is a wasteful number, since it uses less digits than its factorization.

509331068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127332771 (or 127332769 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 509331068 is about 22568.3643182221. The cubic root of 509331068 is about 798.6075088668.

The spelling of 509331068 in words is "five hundred nine million, three hundred thirty-one thousand, sixty-eight".