5636538447 has 16 divisors (see below), whose sum is σ = 7851126528. Its totient is φ = 3590195840.

The previous prime is 5636538437. The next prime is 5636538463. The reversal of 5636538447 is 7448356365.

It is a cyclic number.

It is not a de Polignac number, because 5636538447 - 2⁸ = 5636538191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5636538447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5636538437) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 14428 + ... + 107150.

It is an arithmetic number, because the mean of its divisors is an integer number (490695408).

Almost surely, 2^5636538447 is an apocalyptic number.

5636538447 is a deficient number, since it is larger than the sum of its proper divisors (2214588081).

5636538447 is a wasteful number, since it uses less digits than its factorization.

5636538447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93630.

The product of its digits is 7257600, while the sum is 51.

The square root of 5636538447 is about 75076.8835727749. The cubic root of 5636538447 is about 1779.6618520853.

The spelling of 5636538447 in words is "five billion, six hundred thirty-six million, five hundred thirty-eight thousand, four hundred forty-seven".