4439664968 has 8 divisors (see below), whose sum is σ = 8324371830. Its totient is φ = 2219832480.

The previous prime is 4439664959. The next prime is 4439664991. The reversal of 4439664968 is 8694669344.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4276898404 + 162766564 = 65398^2 + 12758^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277479053 + ... + 277479068.

Almost surely, 2^4439664968 is an apocalyptic number.

It is an amenable number.

4439664968 is a deficient number, since it is larger than the sum of its proper divisors (3884706862).

4439664968 is a wasteful number, since it uses less digits than its factorization.

4439664968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554958127 (or 554958123 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 59.

The square root of 4439664968 is about 66630.8109510908. The cubic root of 4439664968 is about 1643.5518113724.

The spelling of 4439664968 in words is "four billion, four hundred thirty-nine million, six hundred sixty-four thousand, nine hundred sixty-eight".