2081142868 has 12 divisors (see below), whose sum is σ = 4162285792. Its totient is φ = 891918360.

The previous prime is 2081142829. The next prime is 2081142881. The reversal of 2081142868 is 8682411802.

2081142868 is an admirable number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2081142868.

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, 37163238 + ... + 37163293.

Almost surely, 2^2081142868 is an apocalyptic number.

2081142868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2081142868 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.

2081142868 is a wasteful number, since it uses less digits than its factorization.

2081142868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74326542 (or 74326540 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 40.

The square root of 2081142868 is about 45619.5448026391. The cubic root of 2081142868 is about 1276.7346105526.

The spelling of 2081142868 in words is "two billion, eighty-one million, one hundred forty-two thousand, eight hundred sixty-eight".