64404444440446 has 32 divisors (see below), whose sum is σ = 105564180784608. Its totient is φ = 29226148976640.

The previous prime is 64404444440429. The next prime is 64404444440471.

64404444440446 is nontrivially palindromic in base 10.

64404444440446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 64404444440393 and 64404444440402.

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, 33383086 + ... + 35259598.

It is an arithmetic number, because the mean of its divisors is an integer number (3298880649519).

Almost surely, 2^{64404444440446} is an apocalyptic number.

64404444440446 is a deficient number, since it is larger than the sum of its proper divisors (41159736344162).

64404444440446 is a wasteful number, since it uses less digits than its factorization.

64404444440446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879116.

The product of its (nonzero) digits is 37748736, while the sum is 52.

The spelling of 64404444440446 in words is "sixty-four trillion, four hundred four billion, four hundred forty-four million, four hundred forty thousand, four hundred forty-six".