5263644444 has 24 divisors (see below), whose sum is σ = 12394517520. Its totient is φ = 1738450944.

The previous prime is 5263644439. The next prime is 5263644481. The reversal of 5263644444 is 4444463625.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 5263644396 and 5263644405.

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, 2010789 + ... + 2013404.

It is an arithmetic number, because the mean of its divisors is an integer number (516438230).

Almost surely, 2^5263644444 is an apocalyptic number.

It is an amenable number.

5263644444 is an abundant number, since it is smaller than the sum of its proper divisors (7130873076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5263644444 is a wasteful number, since it uses less digits than its factorization.

5263644444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4024309 (or 4024307 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 42.

The square root of 5263644444 is about 72550.9782428879. The cubic root of 5263644444 is about 1739.5176850526.

The spelling of 5263644444 in words is "five billion, two hundred sixty-three million, six hundred forty-four thousand, four hundred forty-four".