89540881836 has 96 divisors (see below), whose sum is σ = 244516608000. Its totient is φ = 24975295488.

The previous prime is 89540881819. The next prime is 89540881841. The reversal of 89540881836 is 63818804598.

It is a self number, because there is not a number n which added to its sum of digits gives 89540881836.

It is an unprimeable number.

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, 514800 + ... + 666408.

It is an arithmetic number, because the mean of its divisors is an integer number (2547048000).

Almost surely, 2^89540881836 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 89540881836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122258304000).

89540881836 is an abundant number, since it is smaller than the sum of its proper divisors (154975726164).

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

89540881836 is a wasteful number, since it uses less digits than its factorization.

89540881836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151791 (or 151789 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 60.

The spelling of 89540881836 in words is "eighty-nine billion, five hundred forty million, eight hundred eighty-one thousand, eight hundred thirty-six".