4120987986 has 144 divisors (see below), whose sum is σ = 9999849600. Its totient is φ = 1224470016.

The previous prime is 4120987939. The next prime is 4120987999. The reversal of 4120987986 is 6897890214.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 8900391 + ... + 8900853.

It is an arithmetic number, because the mean of its divisors is an integer number (69443400).

Almost surely, 2^4120987986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4120987986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4999924800).

4120987986 is an abundant number, since it is smaller than the sum of its proper divisors (5878861614).

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

4120987986 is a wasteful number, since it uses less digits than its factorization.

4120987986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593 (or 573 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The square root of 4120987986 is about 64194.9218085044. The cubic root of 4120987986 is about 1603.2470499693.

The spelling of 4120987986 in words is "four billion, one hundred twenty million, nine hundred eighty-seven thousand, nine hundred eighty-six".