513317008447 has 2 divisors, whose sum is σ = 513317008448. Its totient is φ = 513317008446.

The previous prime is 513317008441. The next prime is 513317008537. The reversal of 513317008447 is 744800713315.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 513317008447 - 2²⁷ = 513182790719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513317008441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256658504223 + 256658504224.

It is an arithmetic number, because the mean of its divisors is an integer number (256658504224).

Almost surely, 2^513317008447 is an apocalyptic number.

513317008447 is a deficient number, since it is larger than the sum of its proper divisors (1).

513317008447 is an equidigital number, since it uses as much as digits as its factorization.

513317008447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 513317008447 in words is "five hundred thirteen billion, three hundred seventeen million, eight thousand, four hundred forty-seven".