6485636461 has 2 divisors, whose sum is σ = 6485636462. Its totient is φ = 6485636460.

The previous prime is 6485636429. The next prime is 6485636467. The reversal of 6485636461 is 1646365846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4367888100 + 2117748361 = 66090^2 + 46019^2 .

It is a cyclic number.

It is not a de Polignac number, because 6485636461 - 2⁵ = 6485636429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6485636467) 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, 3242818230 + 3242818231.

It is an arithmetic number, because the mean of its divisors is an integer number (3242818231).

Almost surely, 2^6485636461 is an apocalyptic number.

It is an amenable number.

6485636461 is a deficient number, since it is larger than the sum of its proper divisors (1).

6485636461 is an equidigital number, since it uses as much as digits as its factorization.

6485636461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2488320, while the sum is 49.

The square root of 6485636461 is about 80533.4493300765. The cubic root of 6485636461 is about 1864.8798961438.

The spelling of 6485636461 in words is "six billion, four hundred eighty-five million, six hundred thirty-six thousand, four hundred sixty-one".