64443234446 has 16 divisors (see below), whose sum is σ = 99034230960. Its totient is φ = 31432009920.

The previous prime is 64443234407. The next prime is 64443234467.

It is a happy number.

64443234446 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 64443234397 and 64443234406.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 730640 + ... + 814076.

It is an arithmetic number, because the mean of its divisors is an integer number (6189639435).

Almost surely, 2^64443234446 is an apocalyptic number.

64443234446 is a deficient number, since it is larger than the sum of its proper divisors (34590996514).

64443234446 is a wasteful number, since it uses less digits than its factorization.

64443234446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92899.

The product of its digits is 2654208, while the sum is 44.

The spelling of 64443234446 in words is "sixty-four billion, four hundred forty-three million, two hundred thirty-four thousand, four hundred forty-six".