513253544164 has 12 divisors (see below), whose sum is σ = 910497726124. Its totient is φ = 253111336704.

The previous prime is 513253544143. The next prime is 513253544173. The reversal of 513253544164 is 461445352315.

It can be written as a sum of positive squares in 2 ways, for example, as 406482753600 + 106770790564 = 637560^2 + 326758^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 513253544164.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 878858517 + ... + 878859100.

Almost surely, 2^513253544164 is an apocalyptic number.

It is an amenable number.

513253544164 is a deficient number, since it is larger than the sum of its proper divisors (397244181960).

513253544164 is a wasteful number, since it uses less digits than its factorization.

513253544164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757717694 (or 1757717692 counting only the distinct ones).

The product of its digits is 864000, while the sum is 43.

Adding to 513253544164 its reverse (461445352315), we get a palindrome (974698896479).

The spelling of 513253544164 in words is "five hundred thirteen billion, two hundred fifty-three million, five hundred forty-four thousand, one hundred sixty-four".