6446312716 has 12 divisors (see below), whose sum is σ = 11585940688. Its totient is φ = 3136043952.

The previous prime is 6446312713. The next prime is 6446312729. The reversal of 6446312716 is 6172136446.

It is not an unprimeable number, because it can be changed into a prime (6446312711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21777936 + ... + 21778231.

Almost surely, 2^6446312716 is an apocalyptic number.

It is an amenable number.

6446312716 is a deficient number, since it is larger than the sum of its proper divisors (5139627972).

6446312716 is a wasteful number, since it uses less digits than its factorization.

6446312716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43556208 (or 43556206 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 6446312716 is about 80288.9327118003. The cubic root of 6446312716 is about 1861.1032030177.

The spelling of 6446312716 in words is "six billion, four hundred forty-six million, three hundred twelve thousand, seven hundred sixteen".