6445764675446 has 4 divisors (see below), whose sum is σ = 9668647013172. Its totient is φ = 3222882337722.

The previous prime is 6445764675433. The next prime is 6445764675479.

6445764675446 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

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 as a sum of consecutive naturals, namely, 1611441168860 + ... + 1611441168863.

It is an arithmetic number, because the mean of its divisors is an integer number (2417161753293).

Almost surely, 2^{6445764675446} is an apocalyptic number.

6445764675446 is a deficient number, since it is larger than the sum of its proper divisors (3222882337726).

6445764675446 is a wasteful number, since it uses less digits than its factorization.

6445764675446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3222882337725.

The product of its digits is 1625702400, while the sum is 68.

The spelling of 6445764675446 in words is "six trillion, four hundred forty-five billion, seven hundred sixty-four million, six hundred seventy-five thousand, four hundred forty-six".