7098568009 has 9 divisors (see below), whose sum is σ = 7687801269. Its totient is φ = 6551513280.

The previous prime is 7098568007. The next prime is 7098568021. The reversal of 7098568009 is 9008658907.

The square root of 7098568009 is 84253.

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

It can be written as a sum of positive squares in 4 ways, for example, as 204919225 + 6893648784 = 14315^2 + 83028^2 .

It is not a de Polignac number, because 7098568009 - 2¹ = 7098568007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7098568007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1092049 + ... + 1098529.

It is an arithmetic number, because the mean of its divisors is an integer number (854200141).

Almost surely, 2^7098568009 is an apocalyptic number.

7098568009 is the 84253-rd square number.

7098568009 is the 42127-th centered octagonal number.

It is an amenable number.

7098568009 is a deficient number, since it is larger than the sum of its proper divisors (589233260).

7098568009 is an frugal number, since it uses more digits than its factorization.

7098568009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12988 (or 6494 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 52.

The cubic root of 7098568009 is about 1921.8681189271.

The spelling of 7098568009 in words is "seven billion, ninety-eight million, five hundred sixty-eight thousand, nine".