578416528369 has 3 divisors (see below), whose sum is σ = 578417288907. Its totient is φ = 578415767832.

The previous prime is 578416528231. The next prime is 578416528411. The reversal of 578416528369 is 963825614875.

The square root of 578416528369 is 760537.

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., 30686280625 + 547730247744 = 175175^2 + 740088^2 .

It is not a de Polignac number, because 578416528369 - 2¹³ = 578416520177 is a prime.

It is a super-2 number, since 2×578416528369² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 578416528369.

It is not an unprimeable number, because it can be changed into a prime (578416568369) 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, 380269 + ... + 1140805.

It is an arithmetic number, because the mean of its divisors is an integer number (192805762969).

Almost surely, 2^578416528369 is an apocalyptic number.

578416528369 is the 760537-th square number.

578416528369 is the 380269-th centered octagonal number.

It is an amenable number.

578416528369 is a deficient number, since it is larger than the sum of its proper divisors (760538).

578416528369 is an frugal number, since it uses more digits than its factorization.

578416528369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521074 (or 760537 counting only the distinct ones).

The product of its digits is 87091200, while the sum is 64.

Multiplying 578416528369 by its sum of digits (64), we get a square (37018657815616 = 6084296²).

The spelling of 578416528369 in words is "five hundred seventy-eight billion, four hundred sixteen million, five hundred twenty-eight thousand, three hundred sixty-nine".