8689574450 has 18 divisors (see below), whose sum is σ = 16163834589. Its totient is φ = 3475566120.

The previous prime is 8689574449. The next prime is 8689574473. The reversal of 8689574450 is 544759868.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8515782961 + 173791489 = 92281^2 + 13183^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=65915.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 652559 + ... + 665741.

Almost surely, 2^8689574450 is an apocalyptic number.

8689574450 is a deficient number, since it is larger than the sum of its proper divisors (7474260139).

8689574450 is an frugal number, since it uses more digits than its factorization.

8689574450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26378 (or 13190 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 56.

The square root of 8689574450 is about 93217.8869638226. The cubic root of 8689574450 is about 2055.8882424542. Note that the first 3 decimals are identical.

The spelling of 8689574450 in words is "eight billion, six hundred eighty-nine million, five hundred seventy-four thousand, four hundred fifty".