6447449134699 has 8 divisors (see below), whose sum is σ = 6670923716160. Its totient is φ = 6224051136576.

The previous prime is 6447449134673. The next prime is 6447449134741. The reversal of 6447449134699 is 9964319447446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6447449134699 - 2⁷ = 6447449134571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6447449134799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18974514 + ... + 19311319.

It is an arithmetic number, because the mean of its divisors is an integer number (833865464520).

Almost surely, 2^{6447449134699} is an apocalyptic number.

6447449134699 is a deficient number, since it is larger than the sum of its proper divisors (223474581461).

6447449134699 is a wasteful number, since it uses less digits than its factorization.

6447449134699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38291669.

The product of its digits is 564350976, while the sum is 70.

The spelling of 6447449134699 in words is "six trillion, four hundred forty-seven billion, four hundred forty-nine million, one hundred thirty-four thousand, six hundred ninety-nine".