89090108536 has 64 divisors (see below), whose sum is σ = 196638865920. Its totient is φ = 37305909120.

The previous prime is 89090108507. The next prime is 89090108537. The reversal of 89090108536 is 63580109098.

It is a self number, because there is not a number n which added to its sum of digits gives 89090108536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89090108537) 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, 498021 + ... + 652843.

It is an arithmetic number, because the mean of its divisors is an integer number (3072482280).

Almost surely, 2^89090108536 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 89090108536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98319432960).

89090108536 is an abundant number, since it is smaller than the sum of its proper divisors (107548757384).

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

89090108536 is a wasteful number, since it uses less digits than its factorization.

89090108536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155356 (or 155352 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 49.

The spelling of 89090108536 in words is "eighty-nine billion, ninety million, one hundred eight thousand, five hundred thirty-six".