6445968695446 has 16 divisors (see below), whose sum is σ = 11083616444160. Its totient is φ = 2754211913640.

The previous prime is 6445968695443. The next prime is 6445968695447.

6445968695446 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×6445968695446² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6445968695443) 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, 695503426 + ... + 695512693.

It is an arithmetic number, because the mean of its divisors is an integer number (692726027760).

Almost surely, 2^{6445968695446} is an apocalyptic number.

6445968695446 is a deficient number, since it is larger than the sum of its proper divisors (4637647748714).

6445968695446 is a wasteful number, since it uses less digits than its factorization.

6445968695446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391016459.

The product of its digits is 5374771200, while the sum is 76.

The spelling of 6445968695446 in words is "six trillion, four hundred forty-five billion, nine hundred sixty-eight million, six hundred ninety-five thousand, four hundred forty-six".