8521448889 has 8 divisors (see below), whose sum is σ = 11366196352. Its totient is φ = 5678833680.

The previous prime is 8521448879. The next prime is 8521448899. The reversal of 8521448889 is 9888441258.

It is an interprime number because it is at equal distance from previous prime (8521448879) and next prime (8521448899).

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

It is not a de Polignac number, because 8521448889 - 2¹¹ = 8521446841 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8521448879) 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, 523714 + ... + 539739.

It is an arithmetic number, because the mean of its divisors is an integer number (1420774544).

Almost surely, 2^8521448889 is an apocalyptic number.

It is an amenable number.

8521448889 is a deficient number, since it is larger than the sum of its proper divisors (2844747463).

8521448889 is a wasteful number, since it uses less digits than its factorization.

8521448889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066127.

The product of its digits is 5898240, while the sum is 57.

The square root of 8521448889 is about 92311.6942158468. The cubic root of 8521448889 is about 2042.5427162850.

The spelling of 8521448889 in words is "eight billion, five hundred twenty-one million, four hundred forty-eight thousand, eight hundred eighty-nine".