4447144672 has 12 divisors (see below), whose sum is σ = 8755316136. Its totient is φ = 2223572320.

The previous prime is 4447144661. The next prime is 4447144673. The reversal of 4447144672 is 2764417444.

It is a happy number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4447144673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69486604 + ... + 69486667.

It is an arithmetic number, because the mean of its divisors is an integer number (729609678).

Almost surely, 2^4447144672 is an apocalyptic number.

It is an amenable number.

4447144672 is a deficient number, since it is larger than the sum of its proper divisors (4308171464).

4447144672 is a wasteful number, since it uses less digits than its factorization.

4447144672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138973281 (or 138973273 counting only the distinct ones).

The product of its digits is 602112, while the sum is 43.

The square root of 4447144672 is about 66686.9152982802. The cubic root of 4447144672 is about 1644.4742821683.

The spelling of 4447144672 in words is "four billion, four hundred forty-seven million, one hundred forty-four thousand, six hundred seventy-two".