6465662249 has 4 divisors (see below), whose sum is σ = 6476210436. Its totient is φ = 6455114064.

The previous prime is 6465662233. The next prime is 6465662251. The reversal of 6465662249 is 9422665646.

6465662249 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9422665646 = 2 ⋅4711332823.

It can be written as a sum of positive squares in 2 ways, for example, as 1820558224 + 4645104025 = 42668^2 + 68155^2 .

It is a cyclic number.

It is not a de Polignac number, because 6465662249 - 2⁴ = 6465662233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6465662197 and 6465662206.

It is not an unprimeable number, because it can be changed into a prime (6465662279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5273174 + ... + 5274399.

It is an arithmetic number, because the mean of its divisors is an integer number (1619052609).

Almost surely, 2^6465662249 is an apocalyptic number.

It is an amenable number.

6465662249 is a deficient number, since it is larger than the sum of its proper divisors (10548187).

6465662249 is a wasteful number, since it uses less digits than its factorization.

6465662249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10548186.

The product of its digits is 3732480, while the sum is 50.

The square root of 6465662249 is about 80409.3418018081. The cubic root of 6465662249 is about 1862.9634657853.

The spelling of 6465662249 in words is "six billion, four hundred sixty-five million, six hundred sixty-two thousand, two hundred forty-nine".