3889808687982 has 64 divisors (see below), whose sum is σ = 9074430443520. Its totient is φ = 1088665564896.

The previous prime is 3889808687981. The next prime is 3889808688011. The reversal of 3889808687982 is 2897868089883.

It is a happy number.

3889808687982 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3889808687982² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3889808687895 and 3889808687904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3889808687981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4194108 + ... + 5036879.

It is an arithmetic number, because the mean of its divisors is an integer number (141787975680).

Almost surely, 2^{3889808687982} is an apocalyptic number.

3889808687982 is an abundant number, since it is smaller than the sum of its proper divisors (5184621755538).

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

3889808687982 is a wasteful number, since it uses less digits than its factorization.

3889808687982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9231205.

The product of its (nonzero) digits is 5350883328, while the sum is 84.

The spelling of 3889808687982 in words is "three trillion, eight hundred eighty-nine billion, eight hundred eight million, six hundred eighty-seven thousand, nine hundred eighty-two".