5263443644 has 24 divisors (see below), whose sum is σ = 9755665920. Its totient is φ = 2476199936.

The previous prime is 5263443623. The next prime is 5263443667. The reversal of 5263443644 is 4463443625.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282629 + ... + 300675.

It is an arithmetic number, because the mean of its divisors is an integer number (406486080).

Almost surely, 2^5263443644 is an apocalyptic number.

It is an amenable number.

5263443644 is a deficient number, since it is larger than the sum of its proper divisors (4492222276).

5263443644 is a wasteful number, since it uses less digits than its factorization.

5263443644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22357 (or 22355 counting only the distinct ones).

The product of its digits is 829440, while the sum is 41.

The square root of 5263443644 is about 72549.5943751583. The cubic root of 5263443644 is about 1739.4955647899.

The spelling of 5263443644 in words is "five billion, two hundred sixty-three million, four hundred forty-three thousand, six hundred forty-four".