513209248841 has 2 divisors, whose sum is σ = 513209248842. Its totient is φ = 513209248840.

The previous prime is 513209248817. The next prime is 513209248889. The reversal of 513209248841 is 148842902315.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 464898967225 + 48310281616 = 681835^2 + 219796^2 .

It is a cyclic number.

It is not a de Polignac number, because 513209248841 - 2³⁰ = 512135507017 is a prime.

It is not a weakly prime, because it can be changed into another prime (513209248801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256604624420 + 256604624421.

It is an arithmetic number, because the mean of its divisors is an integer number (256604624421).

Almost surely, 2^513209248841 is an apocalyptic number.

It is an amenable number.

513209248841 is a deficient number, since it is larger than the sum of its proper divisors (1).

513209248841 is an equidigital number, since it uses as much as digits as its factorization.

513209248841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 513209248841 in words is "five hundred thirteen billion, two hundred nine million, two hundred forty-eight thousand, eight hundred forty-one".