2002111986 has 16 divisors (see below), whose sum is σ = 4576256064. Its totient is φ = 572031984.

The previous prime is 2002111939. The next prime is 2002111987. The reversal of 2002111986 is 6891112002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2002111987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23834625 + ... + 23834708.

It is an arithmetic number, because the mean of its divisors is an integer number (286016004).

Almost surely, 2^2002111986 is an apocalyptic number.

2002111986 is an abundant number, since it is smaller than the sum of its proper divisors (2574144078).

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

2002111986 is a wasteful number, since it uses less digits than its factorization.

2002111986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47669345.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 2002111986 is about 44744.9660408855. The cubic root of 2002111986 is about 1260.3643831490.

Adding to 2002111986 its reverse (6891112002), we get a palindrome (8893223988).

The spelling of 2002111986 in words is "two billion, two million, one hundred eleven thousand, nine hundred eighty-six".