6220446481 has 2 divisors, whose sum is σ = 6220446482. Its totient is φ = 6220446480.

The previous prime is 6220446457. The next prime is 6220446509. The reversal of 6220446481 is 1846440226.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3983629456 + 2236817025 = 63116^2 + 47295^2 .

It is a cyclic number.

It is not a de Polignac number, because 6220446481 - 2²¹ = 6218349329 is a prime.

It is a super-2 number, since 2×6220446481² = 77387908845970566722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6220446481.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3110223240 + 3110223241.

It is an arithmetic number, because the mean of its divisors is an integer number (3110223241).

Almost surely, 2^6220446481 is an apocalyptic number.

It is an amenable number.

6220446481 is a deficient number, since it is larger than the sum of its proper divisors (1).

6220446481 is an equidigital number, since it uses as much as digits as its factorization.

6220446481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73728, while the sum is 37.

The square root of 6220446481 is about 78869.8071571118. The cubic root of 6220446481 is about 1839.1077984858.

The spelling of 6220446481 in words is "six billion, two hundred twenty million, four hundred forty-six thousand, four hundred eighty-one".