6485860261 has 2 divisors, whose sum is σ = 6485860262. Its totient is φ = 6485860260.

The previous prime is 6485860231. The next prime is 6485860291. The reversal of 6485860261 is 1620685846.

It is a balanced prime because it is at equal distance from previous prime (6485860231) and next prime (6485860291).

It can be written as a sum of positive squares in only one way, i.e., 6475420900 + 10439361 = 80470^2 + 3231^2 .

It is a cyclic number.

It is not a de Polignac number, because 6485860261 - 2²³ = 6477471653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6485860201) 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, 3242930130 + 3242930131.

It is an arithmetic number, because the mean of its divisors is an integer number (3242930131).

Almost surely, 2^6485860261 is an apocalyptic number.

It is an amenable number.

6485860261 is a deficient number, since it is larger than the sum of its proper divisors (1).

6485860261 is an equidigital number, since it uses as much as digits as its factorization.

6485860261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 552960, while the sum is 46.

The square root of 6485860261 is about 80534.8388028436. The cubic root of 6485860261 is about 1864.9013463809.

The spelling of 6485860261 in words is "six billion, four hundred eighty-five million, eight hundred sixty thousand, two hundred sixty-one".