6447380837446 has 16 divisors (see below), whose sum is σ = 9837774270720. Its totient is φ = 3168341949960.

The previous prime is 6447380837441. The next prime is 6447380837473.

6447380837446 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6447380837441) 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, 54741610 + ... + 54859261.

It is an arithmetic number, because the mean of its divisors is an integer number (614860891920).

Almost surely, 2^{6447380837446} is an apocalyptic number.

6447380837446 is a deficient number, since it is larger than the sum of its proper divisors (3390393433274).

6447380837446 is a wasteful number, since it uses less digits than its factorization.

6447380837446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109601379.

The product of its (nonzero) digits is 260112384, while the sum is 64.

The spelling of 6447380837446 in words is "six trillion, four hundred forty-seven billion, three hundred eighty million, eight hundred thirty-seven thousand, four hundred forty-six".