6448345718 has 16 divisors (see below), whose sum is σ = 10518289344. Its totient is φ = 2952501120.

The previous prime is 6448345697. The next prime is 6448345781. The reversal of 6448345718 is 8175438446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2561678 + ... + 2564193.

It is an arithmetic number, because the mean of its divisors is an integer number (657393084).

Almost surely, 2^6448345718 is an apocalyptic number.

6448345718 is a deficient number, since it is larger than the sum of its proper divisors (4069943626).

6448345718 is a wasteful number, since it uses less digits than its factorization.

6448345718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5125927.

The product of its digits is 2580480, while the sum is 50.

The square root of 6448345718 is about 80301.5922507144. The cubic root of 6448345718 is about 1861.2988305553.

The spelling of 6448345718 in words is "six billion, four hundred forty-eight million, three hundred forty-five thousand, seven hundred eighteen".