4644328489 has 2 divisors, whose sum is σ = 4644328490. Its totient is φ = 4644328488.

The previous prime is 4644328483. The next prime is 4644328501. The reversal of 4644328489 is 9848234464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4217203600 + 427124889 = 64940^2 + 20667^2 .

It is a cyclic number.

It is not a de Polignac number, because 4644328489 - 2¹³ = 4644320297 is a prime.

It is a super-2 number, since 2×4644328489² = 43139574227474046242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4644328483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2322164244 + 2322164245.

It is an arithmetic number, because the mean of its divisors is an integer number (2322164245).

Almost surely, 2^4644328489 is an apocalyptic number.

It is an amenable number.

4644328489 is a deficient number, since it is larger than the sum of its proper divisors (1).

4644328489 is an equidigital number, since it uses as much as digits as its factorization.

4644328489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5308416, while the sum is 52.

The square root of 4644328489 is about 68149.3102606329. The cubic root of 4644328489 is about 1668.4286663489.

The spelling of 4644328489 in words is "four billion, six hundred forty-four million, three hundred twenty-eight thousand, four hundred eighty-nine".