3984987828966 has 8 divisors (see below), whose sum is σ = 7969975657944. Its totient is φ = 1328329276320.

The previous prime is 3984987828953. The next prime is 3984987829001. The reversal of 3984987828966 is 6698287894893.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

3984987828966 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332082319075 + ... + 332082319086.

It is an arithmetic number, because the mean of its divisors is an integer number (996246957243).

Almost surely, 2^{3984987828966} is an apocalyptic number.

3984987828966 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3984987828966 is a wasteful number, since it uses less digits than its factorization.

3984987828966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664164638166.

The product of its digits is 18059231232, while the sum is 87.

The spelling of 3984987828966 in words is "three trillion, nine hundred eighty-four billion, nine hundred eighty-seven million, eight hundred twenty-eight thousand, nine hundred sixty-six".