6448943068 has 6 divisors (see below), whose sum is σ = 11285650376. Its totient is φ = 3224471532.

The previous prime is 6448943029. The next prime is 6448943071. The reversal of 6448943068 is 8603498446.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806117880 + ... + 806117887.

Almost surely, 2^6448943068 is an apocalyptic number.

It is an amenable number.

6448943068 is a deficient number, since it is larger than the sum of its proper divisors (4836707308).

6448943068 is a wasteful number, since it uses less digits than its factorization.

6448943068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612235771 (or 1612235769 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 52.

The square root of 6448943068 is about 80305.3115802436. The cubic root of 6448943068 is about 1861.3563033075.

The spelling of 6448943068 in words is "six billion, four hundred forty-eight million, nine hundred forty-three thousand, sixty-eight".