6523315009 has 2 divisors, whose sum is σ = 6523315010. Its totient is φ = 6523315008.

The previous prime is 6523314991. The next prime is 6523315061. The reversal of 6523315009 is 9005133256.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4638018609 + 1885296400 = 68103^2 + 43420^2 .

It is a cyclic number.

It is not a de Polignac number, because 6523315009 - 2¹⁹ = 6522790721 is a prime.

It is not a weakly prime, because it can be changed into another prime (6523310009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3261657504 + 3261657505.

It is an arithmetic number, because the mean of its divisors is an integer number (3261657505).

Almost surely, 2^6523315009 is an apocalyptic number.

It is an amenable number.

6523315009 is a deficient number, since it is larger than the sum of its proper divisors (1).

6523315009 is an equidigital number, since it uses as much as digits as its factorization.

6523315009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 34.

The square root of 6523315009 is about 80767.0416011383. The cubic root of 6523315009 is about 1868.4842883860.

The spelling of 6523315009 in words is "six billion, five hundred twenty-three million, three hundred fifteen thousand, nine".