6448344698 has 16 divisors (see below), whose sum is σ = 10271897064. Its totient is φ = 3025505280.

The previous prime is 6448344673. The next prime is 6448344703. The reversal of 6448344698 is 8964438446.

It can be written as a sum of positive squares in 4 ways, for example, as 6241474009 + 206870689 = 79003^2 + 14383^2 .

It is a super-2 number, since 2×6448344698² = 83162298688449422408, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 269933 + ... + 292848.

Almost surely, 2^6448344698 is an apocalyptic number.

6448344698 is a deficient number, since it is larger than the sum of its proper divisors (3823552366).

6448344698 is a wasteful number, since it uses less digits than its factorization.

6448344698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563137.

The product of its digits is 15925248, while the sum is 56.

The square root of 6448344698 is about 80301.5858996571. The cubic root of 6448344698 is about 1861.2987324152.

The spelling of 6448344698 in words is "six billion, four hundred forty-eight million, three hundred forty-four thousand, six hundred ninety-eight".