8444939668 has 12 divisors (see below), whose sum is σ = 16122157632. Its totient is φ = 3838608920.

The previous prime is 8444939653. The next prime is 8444939683. The reversal of 8444939668 is 8669394448.

It is an interprime number because it is at equal distance from previous prime (8444939653) and next prime (8444939683).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95965180 + ... + 95965267.

It is an arithmetic number, because the mean of its divisors is an integer number (1343513136).

Almost surely, 2^8444939668 is an apocalyptic number.

It is an amenable number.

8444939668 is a deficient number, since it is larger than the sum of its proper divisors (7677217964).

8444939668 is a wasteful number, since it uses less digits than its factorization.

8444939668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191930462 (or 191930460 counting only the distinct ones).

The product of its digits is 35831808, while the sum is 61.

The square root of 8444939668 is about 91896.3528547243. The cubic root of 8444939668 is about 2036.4113882507.

The spelling of 8444939668 in words is "eight billion, four hundred forty-four million, nine hundred thirty-nine thousand, six hundred sixty-eight".