2668138284 has 24 divisors (see below), whose sum is σ = 7115035648. Its totient is φ = 762325200.

The previous prime is 2668138273. The next prime is 2668138307. The reversal of 2668138284 is 4828318662.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15881692 + ... + 15881859.

Almost surely, 2^2668138284 is an apocalyptic number.

It is an amenable number.

2668138284 is an abundant number, since it is smaller than the sum of its proper divisors (4446897364).

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

2668138284 is a wasteful number, since it uses less digits than its factorization.

2668138284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31763565 (or 31763563 counting only the distinct ones).

The product of its digits is 884736, while the sum is 48.

The square root of 2668138284 is about 51654.0248577011. The cubic root of 2668138284 is about 1386.9775924086.

The spelling of 2668138284 in words is "two billion, six hundred sixty-eight million, one hundred thirty-eight thousand, two hundred eighty-four".