513472985579 has 4 divisors (see below), whose sum is σ = 519659407176. Its totient is φ = 507286563984.

The previous prime is 513472985569. The next prime is 513472985611. The reversal of 513472985579 is 975589274315.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513472985579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513472985569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3093210674 + ... + 3093210839.

It is an arithmetic number, because the mean of its divisors is an integer number (129914851794).

Almost surely, 2^513472985579 is an apocalyptic number.

513472985579 is a deficient number, since it is larger than the sum of its proper divisors (6186421597).

513472985579 is an equidigital number, since it uses as much as digits as its factorization.

513472985579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6186421596.

The product of its digits is 95256000, while the sum is 65.

The spelling of 513472985579 in words is "five hundred thirteen billion, four hundred seventy-two million, nine hundred eighty-five thousand, five hundred seventy-nine".