509064825613 has 2 divisors, whose sum is σ = 509064825614. Its totient is φ = 509064825612.

The previous prime is 509064825593. The next prime is 509064825649. The reversal of 509064825613 is 316528460905.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 363062887209 + 146001938404 = 602547^2 + 382102^2 .

It is a cyclic number.

It is not a de Polignac number, because 509064825613 - 2¹³ = 509064817421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (509064825713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254532412806 + 254532412807.

It is an arithmetic number, because the mean of its divisors is an integer number (254532412807).

Almost surely, 2^509064825613 is an apocalyptic number.

It is an amenable number.

509064825613 is a deficient number, since it is larger than the sum of its proper divisors (1).

509064825613 is an equidigital number, since it uses as much as digits as its factorization.

509064825613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 49.

The spelling of 509064825613 in words is "five hundred nine billion, sixty-four million, eight hundred twenty-five thousand, six hundred thirteen".