6220446457 has 2 divisors, whose sum is σ = 6220446458. Its totient is φ = 6220446456.

The previous prime is 6220446451. The next prime is 6220446481. The reversal of 6220446457 is 7546440226.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5964318441 + 256128016 = 77229^2 + 16004^2 .

It is a cyclic number.

It is not a de Polignac number, because 6220446457 - 2¹⁹ = 6219922169 is a prime.

It is not a weakly prime, because it can be changed into another prime (6220446451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3110223228 + 3110223229.

It is an arithmetic number, because the mean of its divisors is an integer number (3110223229).

Almost surely, 2^6220446457 is an apocalyptic number.

It is an amenable number.

6220446457 is a deficient number, since it is larger than the sum of its proper divisors (1).

6220446457 is an equidigital number, since it uses as much as digits as its factorization.

6220446457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 40.

The square root of 6220446457 is about 78869.8070049623. The cubic root of 6220446457 is about 1839.1077961205.

The spelling of 6220446457 in words is "six billion, two hundred twenty million, four hundred forty-six thousand, four hundred fifty-seven".