513803366085 has 32 divisors (see below), whose sum is σ = 835354241280. Its totient is φ = 269639405568.

The previous prime is 513803366077. The next prime is 513803366099. The reversal of 513803366085 is 580663308315.

It is not a de Polignac number, because 513803366085 - 2³ = 513803366077 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 816540 + ... + 1301669.

It is an arithmetic number, because the mean of its divisors is an integer number (26104820040).

Almost surely, 2^513803366085 is an apocalyptic number.

It is an amenable number.

513803366085 is a deficient number, since it is larger than the sum of its proper divisors (321550875195).

513803366085 is a wasteful number, since it uses less digits than its factorization.

513803366085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2118477.

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 513803366085 in words is "five hundred thirteen billion, eight hundred three million, three hundred sixty-six thousand, eighty-five".