6448344788 has 6 divisors (see below), whose sum is σ = 11284603386. Its totient is φ = 3224172392.

The previous prime is 6448344787. The next prime is 6448344821. The reversal of 6448344788 is 8874438446.

It can be written as a sum of positive squares in only one way, i.e., 3719536144 + 2728808644 = 60988^2 + 52238^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6448344787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 806043095 + ... + 806043102.

It is an arithmetic number, because the mean of its divisors is an integer number (1880767231).

Almost surely, 2^6448344788 is an apocalyptic number.

It is an amenable number.

6448344788 is a deficient number, since it is larger than the sum of its proper divisors (4836258598).

6448344788 is a wasteful number, since it uses less digits than its factorization.

6448344788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612086201 (or 1612086199 counting only the distinct ones).

The product of its digits is 16515072, while the sum is 56.

The square root of 6448344788 is about 80301.5864600445. The cubic root of 6448344788 is about 1861.2987410746.

The spelling of 6448344788 in words is "six billion, four hundred forty-eight million, three hundred forty-four thousand, seven hundred eighty-eight".