6430515065 has 12 divisors (see below), whose sum is σ = 8355865644. Its totient is φ = 4748687424.

The previous prime is 6430515061. The next prime is 6430515073. The reversal of 6430515065 is 5605150346.

It can be written as a sum of positive squares in 6 ways, for example, as 1534994041 + 4895521024 = 39179^2 + 69968^2 .

It is not a de Polignac number, because 6430515065 - 2² = 6430515061 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6430515061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3804194 + ... + 3805883.

It is an arithmetic number, because the mean of its divisors is an integer number (696322137).

Almost surely, 2^6430515065 is an apocalyptic number.

6430515065 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6430515065 is a deficient number, since it is larger than the sum of its proper divisors (1925350579).

6430515065 is a wasteful number, since it uses less digits than its factorization.

6430515065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7610108 (or 7610095 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 6430515065 is about 80190.4923603790. The cubic root of 6430515065 is about 1859.5816557316.

The spelling of 6430515065 in words is "six billion, four hundred thirty million, five hundred fifteen thousand, sixty-five".