4448144786 has 4 divisors (see below), whose sum is σ = 6672217182. Its totient is φ = 2224072392.

The previous prime is 4448144783. The next prime is 4448144791. The reversal of 4448144786 is 6874418444.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2324686225 + 2123458561 = 48215^2 + 46081^2 .

It is not an unprimeable number, because it can be changed into a prime (4448144783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1112036195 + ... + 1112036198.

Almost surely, 2^4448144786 is an apocalyptic number.

4448144786 is a deficient number, since it is larger than the sum of its proper divisors (2224072396).

4448144786 is a wasteful number, since it uses less digits than its factorization.

4448144786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224072395.

The product of its digits is 2752512, while the sum is 50.

The square root of 4448144786 is about 66694.4134542017. The cubic root of 4448144786 is about 1644.5975476642.

The spelling of 4448144786 in words is "four billion, four hundred forty-eight million, one hundred forty-four thousand, seven hundred eighty-six".