2051116988 has 12 divisors (see below), whose sum is σ = 3713229240. Its totient is φ = 990194352.

The previous prime is 2051116981. The next prime is 2051117011. The reversal of 2051116988 is 8896111502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051116981) 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 3 ways as a sum of consecutive naturals, for example, 8840906 + ... + 8841137.

It is an arithmetic number, because the mean of its divisors is an integer number (309435770).

Almost surely, 2^2051116988 is an apocalyptic number.

It is an amenable number.

2051116988 is a deficient number, since it is larger than the sum of its proper divisors (1662112252).

2051116988 is a wasteful number, since it uses less digits than its factorization.

2051116988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17682076 (or 17682074 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 41.

The square root of 2051116988 is about 45289.2590798304. The cubic root of 2051116988 is about 1270.5647741222.

The spelling of 2051116988 in words is "two billion, fifty-one million, one hundred sixteen thousand, nine hundred eighty-eight".