6449974241 has 2 divisors, whose sum is σ = 6449974242. Its totient is φ = 6449974240.

The previous prime is 6449974229. The next prime is 6449974313. The reversal of 6449974241 is 1424799446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4352700625 + 2097273616 = 65975^2 + 45796^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6449974241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6449974241.

It is not a weakly prime, because it can be changed into another prime (6449974541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3224987120 + 3224987121.

It is an arithmetic number, because the mean of its divisors is an integer number (3224987121).

Almost surely, 2^6449974241 is an apocalyptic number.

It is an amenable number.

6449974241 is a deficient number, since it is larger than the sum of its proper divisors (1).

6449974241 is an equidigital number, since it uses as much as digits as its factorization.

6449974241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 50.

The square root of 6449974241 is about 80311.7316523557. The cubic root of 6449974241 is about 1861.4555070607.

The spelling of 6449974241 in words is "six billion, four hundred forty-nine million, nine hundred seventy-four thousand, two hundred forty-one".