89043721536 has 224 divisors, whose sum is σ = 294047631360. Its totient is φ = 23103129600.

The previous prime is 89043721499. The next prime is 89043721537. The reversal of 89043721536 is 63512734098.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89043721537) 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 31 ways as a sum of consecutive naturals, for example, 16392741 + ... + 16398171.

It is an arithmetic number, because the mean of its divisors is an integer number (1312712640).

It is a 1-persistent number, because it is pandigital, but 2⋅89043721536 = 178087443072 is not.

Almost surely, 2^89043721536 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 89043721536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147023815680).

89043721536 is an abundant number, since it is smaller than the sum of its proper divisors (205003909824).

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

89043721536 is a wasteful number, since it uses less digits than its factorization.

89043721536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6573 (or 6563 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 89043721536 in words is "eighty-nine billion, forty-three million, seven hundred twenty-one thousand, five hundred thirty-six".