6444862684446 has 32 divisors (see below), whose sum is σ = 13241922837408. Its totient is φ = 2089621549440.

The previous prime is 6444862684399. The next prime is 6444862684453.

6444862684446 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 15 ways as a sum of consecutive naturals, for example, 3425665 + ... + 4962348.

It is an arithmetic number, because the mean of its divisors is an integer number (413810088669).

Almost surely, 2^{6444862684446} is an apocalyptic number.

6444862684446 is an abundant number, since it is smaller than the sum of its proper divisors (6797060152962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6444862684446 is a wasteful number, since it uses less digits than its factorization.

6444862684446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8391516.

The product of its digits is 679477248, while the sum is 66.

The spelling of 6444862684446 in words is "six trillion, four hundred forty-four billion, eight hundred sixty-two million, six hundred eighty-four thousand, four hundred forty-six".