6448344786 has 48 divisors (see below), whose sum is σ = 15161065920. Its totient is φ = 1968950880.

The previous prime is 6448344739. The next prime is 6448344787. The reversal of 6448344786 is 6874438446.

6448344786 is a `hidden beast` number, since 6 + 44 + 83 + 447 + 86 = 666.

It is a Curzon 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 in 23 ways as a sum of consecutive naturals, for example, 74526 + ... + 135833.

It is an arithmetic number, because the mean of its divisors is an integer number (315855540).

Almost surely, 2^6448344786 is an apocalyptic number.

6448344786 is an abundant number, since it is smaller than the sum of its proper divisors (8712721134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6448344786 is a wasteful number, since it uses less digits than its factorization.

6448344786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210511 (or 210508 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 54.

The square root of 6448344786 is about 80301.5864475914. The cubic root of 6448344786 is about 1861.2987408822.

The spelling of 6448344786 in words is "six billion, four hundred forty-eight million, three hundred forty-four thousand, seven hundred eighty-six".