4645387189 has 2 divisors, whose sum is σ = 4645387190. Its totient is φ = 4645387188.

The previous prime is 4645387181. The next prime is 4645387213. The reversal of 4645387189 is 9817835464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4038602500 + 606784689 = 63550^2 + 24633^2 .

It is a cyclic number.

It is not a de Polignac number, because 4645387189 - 2³ = 4645387181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4645387181) 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 as a sum of consecutive naturals, namely, 2322693594 + 2322693595.

It is an arithmetic number, because the mean of its divisors is an integer number (2322693595).

Almost surely, 2^4645387189 is an apocalyptic number.

It is an amenable number.

4645387189 is a deficient number, since it is larger than the sum of its proper divisors (1).

4645387189 is an equidigital number, since it uses as much as digits as its factorization.

4645387189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5806080, while the sum is 55.

The square root of 4645387189 is about 68157.0773214345. The cubic root of 4645387189 is about 1668.5554325207. Note that the first 3 decimals are identical.

The spelling of 4645387189 in words is "four billion, six hundred forty-five million, three hundred eighty-seven thousand, one hundred eighty-nine".