509968914 has 32 divisors (see below), whose sum is σ = 1255309440. Its totient is φ = 134497152.

The previous prime is 509968909. The next prime is 509968961. The reversal of 509968914 is 419869905.

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, 466459 + ... + 467550.

It is an arithmetic number, because the mean of its divisors is an integer number (39228420).

Almost surely, 2^509968914 is an apocalyptic number.

509968914 is an abundant number, since it is smaller than the sum of its proper divisors (745340526).

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

509968914 is a wasteful number, since it uses less digits than its factorization.

509968914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934034.

The product of its (nonzero) digits is 699840, while the sum is 51.

The square root of 509968914 is about 22582.4913151760. The cubic root of 509968914 is about 798.9407407898.

Subtracting from 509968914 its reverse (419869905), we obtain a palindrome (90099009).

The spelling of 509968914 in words is "five hundred nine million, nine hundred sixty-eight thousand, nine hundred fourteen".