513209248833 has 4 divisors (see below), whose sum is σ = 684278998448. Its totient is φ = 342139499220.

The previous prime is 513209248817. The next prime is 513209248841. The reversal of 513209248833 is 338842902315.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 513209248833 - 2⁴ = 513209248817 is a prime.

It is a super-2 number, since 2×513209248833² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513209248813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85534874803 + ... + 85534874808.

It is an arithmetic number, because the mean of its divisors is an integer number (171069749612).

Almost surely, 2^513209248833 is an apocalyptic number.

It is an amenable number.

513209248833 is a deficient number, since it is larger than the sum of its proper divisors (171069749615).

513209248833 is a wasteful number, since it uses less digits than its factorization.

513209248833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171069749614.

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 513209248833 in words is "five hundred thirteen billion, two hundred nine million, two hundred forty-eight thousand, eight hundred thirty-three".