6446374736446 has 16 divisors (see below), whose sum is σ = 9778751604720. Its totient is φ = 3186794888640.

The previous prime is 6446374736437. The next prime is 6446374736471.

6446374736446 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2240245 + ... + 4232191.

It is an arithmetic number, because the mean of its divisors is an integer number (611171975295).

Almost surely, 2^{6446374736446} is an apocalyptic number.

6446374736446 is a deficient number, since it is larger than the sum of its proper divisors (3332376868274).

6446374736446 is a wasteful number, since it uses less digits than its factorization.

6446374736446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2010219.

The product of its digits is 585252864, while the sum is 64.

The spelling of 6446374736446 in words is "six trillion, four hundred forty-six billion, three hundred seventy-four million, seven hundred thirty-six thousand, four hundred forty-six".