6626006254609 has 27 divisors (see below), whose sum is σ = 7901264595441. Its totient is φ = 5540293368960.

The previous prime is 6626006254577. The next prime is 6626006254633. The reversal of 6626006254609 is 9064526006266.

It is a happy number.

The square root of 6626006254609 is 2574103.

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 1726866694609 + 4899139560000 = 1314103^2 + 2213400^2 .

It is not a de Polignac number, because 6626006254609 - 2⁵ = 6626006254577 is a prime.

It is a super-2 number, since 2×6626006254609² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6626006258609) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 738763077 + ... + 738772045.

Almost surely, 2^{6626006254609} is an apocalyptic number.

6626006254609 is the 2574103-rd square number.

6626006254609 is the 1287052-nd centered octagonal number.

It is an amenable number.

6626006254609 is a deficient number, since it is larger than the sum of its proper divisors (1275258340832).

6626006254609 is an frugal number, since it uses more digits than its factorization.

6626006254609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18034 (or 9017 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 52.

The spelling of 6626006254609 in words is "six trillion, six hundred twenty-six billion, six million, two hundred fifty-four thousand, six hundred nine".