6504626669 has 2 divisors, whose sum is σ = 6504626670. Its totient is φ = 6504626668.

The previous prime is 6504626647. The next prime is 6504626707. The reversal of 6504626669 is 9666264056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5031064900 + 1473561769 = 70930^2 + 38387^2 .

It is a cyclic number.

It is not a de Polignac number, because 6504626669 - 2²⁰ = 6503578093 is a prime.

It is a super-2 number, since 2×6504626669² = 84620336206132071122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6504616669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3252313334 + 3252313335.

It is an arithmetic number, because the mean of its divisors is an integer number (3252313335).

Almost surely, 2^6504626669 is an apocalyptic number.

It is an amenable number.

6504626669 is a deficient number, since it is larger than the sum of its proper divisors (1).

6504626669 is an equidigital number, since it uses as much as digits as its factorization.

6504626669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2799360, while the sum is 50.

The square root of 6504626669 is about 80651.2657619209. The cubic root of 6504626669 is about 1866.6982706632.

The spelling of 6504626669 in words is "six billion, five hundred four million, six hundred twenty-six thousand, six hundred sixty-nine".