6465524249 has 2 divisors, whose sum is σ = 6465524250. Its totient is φ = 6465524248.

The previous prime is 6465524243. The next prime is 6465524287. The reversal of 6465524249 is 9424255646.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4611360649 + 1854163600 = 67907^2 + 43060^2 .

It is a cyclic number.

It is not a de Polignac number, because 6465524249 - 2²⁰ = 6464475673 is a prime.

It is not a weakly prime, because it can be changed into another prime (6465524243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3232762124 + 3232762125.

It is an arithmetic number, because the mean of its divisors is an integer number (3232762125).

Almost surely, 2^6465524249 is an apocalyptic number.

It is an amenable number.

6465524249 is a deficient number, since it is larger than the sum of its proper divisors (1).

6465524249 is an equidigital number, since it uses as much as digits as its factorization.

6465524249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2073600, while the sum is 47.

The square root of 6465524249 is about 80408.4836879791. The cubic root of 6465524249 is about 1862.9502116242.

The spelling of 6465524249 in words is "six billion, four hundred sixty-five million, five hundred twenty-four thousand, two hundred forty-nine".