513344434513 has 16 divisors (see below), whose sum is σ = 530443192320. Its totient is φ = 496561665600.

The previous prime is 513344434511. The next prime is 513344434523. The reversal of 513344434513 is 315434443315.

It is a cyclic number.

It is not a de Polignac number, because 513344434513 - 2¹ = 513344434511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513344434511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1570128 + ... + 1868686.

It is an arithmetic number, because the mean of its divisors is an integer number (33152699520).

Almost surely, 2^513344434513 is an apocalyptic number.

It is an amenable number.

513344434513 is a deficient number, since it is larger than the sum of its proper divisors (17098757807).

513344434513 is a wasteful number, since it uses less digits than its factorization.

513344434513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299088.

The product of its digits is 518400, while the sum is 40.

Adding to 513344434513 its reverse (315434443315), we get a palindrome (828778877828).

The spelling of 513344434513 in words is "five hundred thirteen billion, three hundred forty-four million, four hundred thirty-four thousand, five hundred thirteen".