89009386728 has 64 divisors (see below), whose sum is σ = 232278019200. Its totient is φ = 28370073600.

The previous prime is 89009386727. The next prime is 89009386769. The reversal of 89009386728 is 82768390098.

It is not an unprimeable number, because it can be changed into a prime (89009386727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1679028 + ... + 1731228.

It is an arithmetic number, because the mean of its divisors is an integer number (3629344050).

Almost surely, 2^89009386728 is an apocalyptic number.

It is an amenable number.

89009386728 is an abundant number, since it is smaller than the sum of its proper divisors (143268632472).

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

89009386728 is a wasteful number, since it uses less digits than its factorization.

89009386728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55322 (or 55318 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 60.

The spelling of 89009386728 in words is "eighty-nine billion, nine million, three hundred eighty-six thousand, seven hundred twenty-eight".