513434345353 has 2 divisors, whose sum is σ = 513434345354. Its totient is φ = 513434345352.

The previous prime is 513434345327. The next prime is 513434345507. The reversal of 513434345353 is 353543434315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 494936169289 + 18498176064 = 703517^2 + 136008^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513434345353 is a prime.

It is a super-2 number, since 2×513434345353² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (513434345153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256717172676 + 256717172677.

It is an arithmetic number, because the mean of its divisors is an integer number (256717172677).

Almost surely, 2^513434345353 is an apocalyptic number.

It is an amenable number.

513434345353 is a deficient number, since it is larger than the sum of its proper divisors (1).

513434345353 is an equidigital number, since it uses as much as digits as its factorization.

513434345353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944000, while the sum is 43.

Adding to 513434345353 its reverse (353543434315), we get a palindrome (866977779668).

The spelling of 513434345353 in words is "five hundred thirteen billion, four hundred thirty-four million, three hundred forty-five thousand, three hundred fifty-three".