4551844489 has 2 divisors, whose sum is σ = 4551844490. Its totient is φ = 4551844488.

The previous prime is 4551844471. The next prime is 4551844499. The reversal of 4551844489 is 9844481554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4551796089 + 48400 = 67467^2 + 220^2 .

It is a cyclic number.

It is not a de Polignac number, because 4551844489 - 2⁵ = 4551844457 is a prime.

It is a super-2 number, since 2×4551844489² = 41438576504079342242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4551844439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2275922244 + 2275922245.

It is an arithmetic number, because the mean of its divisors is an integer number (2275922245).

Almost surely, 2^4551844489 is an apocalyptic number.

It is an amenable number.

4551844489 is a deficient number, since it is larger than the sum of its proper divisors (1).

4551844489 is an equidigital number, since it uses as much as digits as its factorization.

4551844489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3686400, while the sum is 52.

The square root of 4551844489 is about 67467.3586929265. The cubic root of 4551844489 is about 1657.2796797336.

The spelling of 4551844489 in words is "four billion, five hundred fifty-one million, eight hundred forty-four thousand, four hundred eighty-nine".