89485505568 has 120 divisors (see below), whose sum is σ = 264154787820. Its totient is φ = 29717383680.

The previous prime is 89485505521. The next prime is 89485505579. The reversal of 89485505568 is 86550558498.

89485505568 is a `hidden beast` number, since 89 + 48 + 5 + 505 + 5 + 6 + 8 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 89432098704 + 53406864 = 299052^2 + 7308^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 633078 + ... + 761418.

Almost surely, 2^89485505568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89485505568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132077393910).

89485505568 is an abundant number, since it is smaller than the sum of its proper divisors (174669282252).

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

89485505568 is a wasteful number, since it uses less digits than its factorization.

89485505568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128632 (or 128615 counting only the distinct ones).

The product of its (nonzero) digits is 69120000, while the sum is 63.

The spelling of 89485505568 in words is "eighty-nine billion, four hundred eighty-five million, five hundred five thousand, five hundred sixty-eight".