516479913 has 6 divisors (see below), whose sum is σ = 746026554. Its totient is φ = 344319936.

The previous prime is 516479893. The next prime is 516479969. The reversal of 516479913 is 319974615.

516479913 is a `hidden beast` number, since 516 + 47 + 9 + 91 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 512207424 + 4272489 = 22632^2 + 2067^2 .

It is not a de Polignac number, because 516479913 - 2⁶ = 516479849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (516479213) 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 5 ways as a sum of consecutive naturals, for example, 28693320 + ... + 28693337.

It is an arithmetic number, because the mean of its divisors is an integer number (124337759).

Almost surely, 2^516479913 is an apocalyptic number.

It is an amenable number.

516479913 is a deficient number, since it is larger than the sum of its proper divisors (229546641).

516479913 is a wasteful number, since it uses less digits than its factorization.

516479913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57386663 (or 57386660 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 516479913 is about 22726.1944240561. The cubic root of 516479913 is about 802.3265156185.

The spelling of 516479913 in words is "five hundred sixteen million, four hundred seventy-nine thousand, nine hundred thirteen".