4644889063 has 2 divisors, whose sum is σ = 4644889064. Its totient is φ = 4644889062.

The previous prime is 4644889033. The next prime is 4644889097. The reversal of 4644889063 is 3609884464.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4644889063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4644889063.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4644889003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2322444531 + 2322444532.

It is an arithmetic number, because the mean of its divisors is an integer number (2322444532).

Almost surely, 2^4644889063 is an apocalyptic number.

4644889063 is a deficient number, since it is larger than the sum of its proper divisors (1).

4644889063 is an equidigital number, since it uses as much as digits as its factorization.

4644889063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3981312, while the sum is 52.

The square root of 4644889063 is about 68153.4229734648. The cubic root of 4644889063 is about 1668.4957905203.

The spelling of 4644889063 in words is "four billion, six hundred forty-four million, eight hundred eighty-nine thousand, sixty-three".