89094521640 has 128 divisors (see below), whose sum is σ = 273678912000. Its totient is φ = 23192690688.

The previous prime is 89094521629. The next prime is 89094521641. The reversal of 89094521640 is 4612549098.

It is a self number, because there is not a number n which added to its sum of digits gives 89094521640.

It is not an unprimeable number, because it can be changed into a prime (89094521641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2173656 + ... + 2214264.

It is an arithmetic number, because the mean of its divisors is an integer number (2138116500).

Almost surely, 2^89094521640 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 89094521640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136839456000).

89094521640 is an abundant number, since it is smaller than the sum of its proper divisors (184584390360).

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

89094521640 is a wasteful number, since it uses less digits than its factorization.

89094521640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41059 (or 41055 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 89094521640 in words is "eighty-nine billion, ninety-four million, five hundred twenty-one thousand, six hundred forty".