3889735785018 has 128 divisors (see below), whose sum is σ = 9208588032000. Its totient is φ = 1212825579264.

The previous prime is 3889735784953. The next prime is 3889735785037. The reversal of 3889735785018 is 8105875379883.

3889735785018 is a `hidden beast` number, since 3 + 8 + 89 + 7 + 35 + 7 + 8 + 501 + 8 = 666.

3889735785018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 122306683 + ... + 122338481.

It is an arithmetic number, because the mean of its divisors is an integer number (71942094000).

Almost surely, 2^{3889735785018} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3889735785018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4604294016000).

3889735785018 is an abundant number, since it is smaller than the sum of its proper divisors (5318852246982).

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

3889735785018 is a wasteful number, since it uses less digits than its factorization.

3889735785018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32641 (or 32635 counting only the distinct ones).

The product of its (nonzero) digits is 406425600, while the sum is 72.

The spelling of 3889735785018 in words is "three trillion, eight hundred eighty-nine billion, seven hundred thirty-five million, seven hundred eighty-five thousand, eighteen".