89839840069980 has 576 divisors, whose sum is σ = 367317064977408. Its totient is φ = 17164957777920.

The previous prime is 89839840069979. The next prime is 89839840069999. The reversal of 89839840069980 is 8996004893898.

89839840069980 is a `hidden beast` number, since 8 + 98 + 39 + 8 + 400 + 6 + 9 + 98 + 0 = 666.

It is a super-2 number, since 2×89839840069980² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 89839840069980.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 45336199 + ... + 47276321.

It is an arithmetic number, because the mean of its divisors is an integer number (637703237808).

Almost surely, 2^{89839840069980} 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 89839840069980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183658532488704).

89839840069980 is an abundant number, since it is smaller than the sum of its proper divisors (277477224907428).

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

89839840069980 is a wasteful number, since it uses less digits than its factorization.

89839840069980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940426 (or 1940421 counting only the distinct ones).

The product of its (nonzero) digits is 1934917632, while the sum is 81.

The spelling of 89839840069980 in words is "eighty-nine trillion, eight hundred thirty-nine billion, eight hundred forty million, sixty-nine thousand, nine hundred eighty".