504913988329 has 3 divisors (see below), whose sum is σ = 504914698903. Its totient is φ = 504913277756.

The previous prime is 504913988311. The next prime is 504913988363. The reversal of 504913988329 is 923889319405.

The square root of 504913988329 is 710573.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 278958267225 + 225955721104 = 528165^2 + 475348^2 .

It is not a de Polignac number, because 504913988329 - 2¹¹ = 504913986281 is a prime.

It is a super-2 number, since 2×504913988329² (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 (504913988309) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 355287 + ... + 1065859.

Almost surely, 2^504913988329 is an apocalyptic number.

504913988329 is the 710573-rd square number.

504913988329 is the 355287-th centered octagonal number.

It is an amenable number.

504913988329 is a deficient number, since it is larger than the sum of its proper divisors (710574).

504913988329 is an frugal number, since it uses more digits than its factorization.

504913988329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421146 (or 710573 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 61.

The spelling of 504913988329 in words is "five hundred four billion, nine hundred thirteen million, nine hundred eighty-eight thousand, three hundred twenty-nine".