89108591796 has 144 divisors (see below), whose sum is σ = 271295256960. Its totient is φ = 24090981120.

The previous prime is 89108591779. The next prime is 89108591797. The reversal of 89108591796 is 69719580198.

It is a super-2 number, since 2×89108591796² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89108591797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4188466 + ... + 4209686.

It is an arithmetic number, because the mean of its divisors is an integer number (1883994840).

Almost surely, 2^89108591796 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 89108591796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135647628480).

89108591796 is an abundant number, since it is smaller than the sum of its proper divisors (182186665164).

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

89108591796 is a wasteful number, since it uses less digits than its factorization.

89108591796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22134 (or 22129 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 63.

The spelling of 89108591796 in words is "eighty-nine billion, one hundred eight million, five hundred ninety-one thousand, seven hundred ninety-six".