89889633856 has 63 divisors (see below), whose sum is σ = 196122363787. Its totient is φ = 40846931840.

The previous prime is 89889633833. The next prime is 89889633877. The reversal of 89889633856 is 65833698898.

The square root of 89889633856 is 299816.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 26382105 + ... + 26385511.

Almost surely, 2^89889633856 is an apocalyptic number.

89889633856 is the 299816-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89889633856

89889633856 is an abundant number, since it is smaller than the sum of its proper divisors (106232729931).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89889633856 is an frugal number, since it uses more digits than its factorization.

89889633856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6848 (or 3420 counting only the distinct ones).

The product of its digits is 537477120, while the sum is 73.

The spelling of 89889633856 in words is "eighty-nine billion, eight hundred eighty-nine million, six hundred thirty-three thousand, eight hundred fifty-six".