4541636789 has 4 divisors (see below), whose sum is σ = 4652408460. Its totient is φ = 4430865120.

The previous prime is 4541636777. The next prime is 4541636807. The reversal of 4541636789 is 9876361454.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 564442564 + 3977194225 = 23758^2 + 63065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4541636789 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4541636789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4541636719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55385774 + ... + 55385855.

It is an arithmetic number, because the mean of its divisors is an integer number (1163102115).

Almost surely, 2^4541636789 is an apocalyptic number.

It is an amenable number.

4541636789 is a deficient number, since it is larger than the sum of its proper divisors (110771671).

4541636789 is a wasteful number, since it uses less digits than its factorization.

4541636789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110771670.

The product of its digits is 4354560, while the sum is 53.

The square root of 4541636789 is about 67391.6670590660. The cubic root of 4541636789 is about 1656.0399130626.

The spelling of 4541636789 in words is "four billion, five hundred forty-one million, six hundred thirty-six thousand, seven hundred eighty-nine".