2012321986 has 16 divisors (see below), whose sum is σ = 3030831360. Its totient is φ = 1002054240.

The previous prime is 2012321963. The next prime is 2012321989. The reversal of 2012321986 is 6891232102.

It is not an unprimeable number, because it can be changed into a prime (2012321989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552391 + ... + 556021.

It is an arithmetic number, because the mean of its divisors is an integer number (189426960).

Almost surely, 2^2012321986 is an apocalyptic number.

2012321986 is a deficient number, since it is larger than the sum of its proper divisors (1018509374).

2012321986 is a wasteful number, since it uses less digits than its factorization.

2012321986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4689.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 2012321986 is about 44858.9120019646. The cubic root of 2012321986 is about 1262.5032091674.

The spelling of 2012321986 in words is "two billion, twelve million, three hundred twenty-one thousand, nine hundred eighty-six".