4433261648 has 10 divisors (see below), whose sum is σ = 8589444474. Its totient is φ = 2216630816.

The previous prime is 4433261641. The next prime is 4433261689. The reversal of 4433261648 is 8461623344.

It can be written as a sum of positive squares in only one way, i.e., 3603360784 + 829900864 = 60028^2 + 28808^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4433261641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138539411 + ... + 138539442.

Almost surely, 2^4433261648 is an apocalyptic number.

It is an amenable number.

4433261648 is a deficient number, since it is larger than the sum of its proper divisors (4156182826).

4433261648 is a wasteful number, since it uses less digits than its factorization.

4433261648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277078861 (or 277078855 counting only the distinct ones).

The product of its digits is 331776, while the sum is 41.

The square root of 4433261648 is about 66582.7428693051. The cubic root of 4433261648 is about 1642.7612673418.

The spelling of 4433261648 in words is "four billion, four hundred thirty-three million, two hundred sixty-one thousand, six hundred forty-eight".