6480000409 has 2 divisors, whose sum is σ = 6480000410. Its totient is φ = 6480000408.

The previous prime is 6480000383. The next prime is 6480000437. The reversal of 6480000409 is 9040000846.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6431558809 + 48441600 = 80197^2 + 6960^2 .

It is a cyclic number.

It is not a de Polignac number, because 6480000409 - 2¹⁷ = 6479869337 is a prime.

It is not a weakly prime, because it can be changed into another prime (6480000479) 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 as a sum of consecutive naturals, namely, 3240000204 + 3240000205.

It is an arithmetic number, because the mean of its divisors is an integer number (3240000205).

Almost surely, 2^6480000409 is an apocalyptic number.

It is an amenable number.

6480000409 is a deficient number, since it is larger than the sum of its proper divisors (1).

6480000409 is an equidigital number, since it uses as much as digits as its factorization.

6480000409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 6480000409 is about 80498.4497304141. The cubic root of 6480000409 is about 1864.3395427963.

The spelling of 6480000409 in words is "six billion, four hundred eighty million, four hundred nine", and thus it is an aban number.