2668211284 has 12 divisors (see below), whose sum is σ = 4783257108. Its totient is φ = 1301566400.

The previous prime is 2668211281. The next prime is 2668211419. The reversal of 2668211284 is 4821128662.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 423536400 + 2244674884 = 20580^2 + 47378^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2668211281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8134627 + ... + 8134954.

It is an arithmetic number, because the mean of its divisors is an integer number (398604759).

Almost surely, 2^2668211284 is an apocalyptic number.

It is an amenable number.

2668211284 is a deficient number, since it is larger than the sum of its proper divisors (2115045824).

2668211284 is a wasteful number, since it uses less digits than its factorization.

2668211284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16269626 (or 16269624 counting only the distinct ones).

The product of its digits is 73728, while the sum is 40.

The square root of 2668211284 is about 51654.7314773778. The cubic root of 2668211284 is about 1386.9902414832.

The spelling of 2668211284 in words is "two billion, six hundred sixty-eight million, two hundred eleven thousand, two hundred eighty-four".