6465046109 has 2 divisors, whose sum is σ = 6465046110. Its totient is φ = 6465046108.

The previous prime is 6465046099. The next prime is 6465046123. The reversal of 6465046109 is 9016405646.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6439260025 + 25786084 = 80245^2 + 5078^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6465046109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6465046129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3232523054 + 3232523055.

It is an arithmetic number, because the mean of its divisors is an integer number (3232523055).

Almost surely, 2^6465046109 is an apocalyptic number.

It is an amenable number.

6465046109 is a deficient number, since it is larger than the sum of its proper divisors (1).

6465046109 is an equidigital number, since it uses as much as digits as its factorization.

6465046109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 6465046109 is about 80405.5104392728. The cubic root of 6465046109 is about 1862.9042873784.

The spelling of 6465046109 in words is "six billion, four hundred sixty-five million, forty-six thousand, one hundred nine".