4475144644 has 6 divisors (see below), whose sum is σ = 7831503134. Its totient is φ = 2237572320.

The previous prime is 4475144603. The next prime is 4475144671. The reversal of 4475144644 is 4464415744.

It can be written as a sum of positive squares in only one way, i.e., 3233287044 + 1241857600 = 56862^2 + 35240^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4475144644.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559393077 + ... + 559393084.

Almost surely, 2^4475144644 is an apocalyptic number.

It is an amenable number.

4475144644 is a deficient number, since it is larger than the sum of its proper divisors (3356358490).

4475144644 is a wasteful number, since it uses less digits than its factorization.

4475144644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118786165 (or 1118786163 counting only the distinct ones).

The product of its digits is 860160, while the sum is 43.

The square root of 4475144644 is about 66896.5219125778. The cubic root of 4475144644 is about 1647.9183597859.

The spelling of 4475144644 in words is "four billion, four hundred seventy-five million, one hundred forty-four thousand, six hundred forty-four".