513504704473 has 2 divisors, whose sum is σ = 513504704474. Its totient is φ = 513504704472.

The previous prime is 513504704459. The next prime is 513504704563. The reversal of 513504704473 is 374407405315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 390390035344 + 123114669129 = 624812^2 + 350877^2 .

It is a cyclic number.

It is not a de Polignac number, because 513504704473 - 2¹⁷ = 513504573401 is a prime.

It is not a weakly prime, because it can be changed into another prime (513504714473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256752352236 + 256752352237.

It is an arithmetic number, because the mean of its divisors is an integer number (256752352237).

Almost surely, 2^513504704473 is an apocalyptic number.

It is an amenable number.

513504704473 is a deficient number, since it is larger than the sum of its proper divisors (1).

513504704473 is an equidigital number, since it uses as much as digits as its factorization.

513504704473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 705600, while the sum is 43.

The spelling of 513504704473 in words is "five hundred thirteen billion, five hundred four million, seven hundred four thousand, four hundred seventy-three".