6444848755 has 4 divisors (see below), whose sum is σ = 7733818512. Its totient is φ = 5155879000.

The previous prime is 6444848749. The next prime is 6444848783. The reversal of 6444848755 is 5578484446.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6444848755 - 2³ = 6444848747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6444848696 and 6444848705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644484871 + ... + 644484880.

It is an arithmetic number, because the mean of its divisors is an integer number (1933454628).

Almost surely, 2^6444848755 is an apocalyptic number.

6444848755 is a deficient number, since it is larger than the sum of its proper divisors (1288969757).

6444848755 is a wasteful number, since it uses less digits than its factorization.

6444848755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288969756.

The product of its digits is 17203200, while the sum is 55.

The square root of 6444848755 is about 80279.8153647603. The cubic root of 6444848755 is about 1860.9623065133.

The spelling of 6444848755 in words is "six billion, four hundred forty-four million, eight hundred forty-eight thousand, seven hundred fifty-five".