5636423444 has 6 divisors (see below), whose sum is σ = 9863741034. Its totient is φ = 2818211720.

The previous prime is 5636423437. The next prime is 5636423461. The reversal of 5636423444 is 4443246365.

It can be written as a sum of positive squares in only one way, i.e., 4835533444 + 800890000 = 69538^2 + 28300^2 .

It is a super-2 number, since 2×5636423444² = 63538538480145642272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 704552927 + ... + 704552934.

It is an arithmetic number, because the mean of its divisors is an integer number (1643956839).

Almost surely, 2^5636423444 is an apocalyptic number.

It is an amenable number.

5636423444 is a deficient number, since it is larger than the sum of its proper divisors (4227317590).

5636423444 is a wasteful number, since it uses less digits than its factorization.

5636423444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409105865 (or 1409105863 counting only the distinct ones).

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

The square root of 5636423444 is about 75076.1176673381. The cubic root of 5636423444 is about 1779.6497484485.

The spelling of 5636423444 in words is "five billion, six hundred thirty-six million, four hundred twenty-three thousand, four hundred forty-four".