4481256989 has 8 divisors (see below), whose sum is σ = 5145941280. Its totient is φ = 3859455600.

The previous prime is 4481256977. The next prime is 4481257013. The reversal of 4481256989 is 9896521844.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4481256989 - 2⁴ = 4481256973 is a prime.

It is a super-2 number, since 2×4481256989² = 40163328402922692242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4481256959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10720502 + ... + 10720919.

It is an arithmetic number, because the mean of its divisors is an integer number (643242660).

Almost surely, 2^4481256989 is an apocalyptic number.

It is an amenable number.

4481256989 is a deficient number, since it is larger than the sum of its proper divisors (664684291).

4481256989 is a wasteful number, since it uses less digits than its factorization.

4481256989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21441451.

The product of its digits is 4976640, while the sum is 56.

The square root of 4481256989 is about 66942.1913967566. The cubic root of 4481256989 is about 1648.6682843836.

The spelling of 4481256989 in words is "four billion, four hundred eighty-one million, two hundred fifty-six thousand, nine hundred eighty-nine".