675005198569 has 9 divisors (see below), whose sum is σ = 730934354583. Its totient is φ = 623071862712.

The previous prime is 675005198557. The next prime is 675005198611. The reversal of 675005198569 is 965891500576.

The square root of 675005198569 is 821587.

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

It can be written as a sum of positive squares in only one way, i.e., 99852840025 + 575152358544 = 315995^2 + 758388^2 .

It is not a de Polignac number, because 675005198569 - 2²⁹ = 674468327657 is a prime.

It is a super-2 number, since 2×675005198569² (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 (675005118569) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10649032 + ... + 10712230.

It is an arithmetic number, because the mean of its divisors is an integer number (81214928287).

Almost surely, 2^675005198569 is an apocalyptic number.

675005198569 is the 821587-th square number.

675005198569 is the 410794-th centered octagonal number.

It is an amenable number.

675005198569 is a deficient number, since it is larger than the sum of its proper divisors (55929156014).

675005198569 is an frugal number, since it uses more digits than its factorization.

675005198569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126424 (or 63212 counting only the distinct ones).

The product of its (nonzero) digits is 20412000, while the sum is 61.

The spelling of 675005198569 in words is "six hundred seventy-five billion, five million, one hundred ninety-eight thousand, five hundred sixty-nine".