2668281468 has 12 divisors (see below), whose sum is σ = 6225990120. Its totient is φ = 889427152.

The previous prime is 2668281457. The next prime is 2668281527. The reversal of 2668281468 is 8641828662.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 2668281468.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111178383 + ... + 111178406.

It is an arithmetic number, because the mean of its divisors is an integer number (518832510).

Almost surely, 2^2668281468 is an apocalyptic number.

It is an amenable number.

2668281468 is an abundant number, since it is smaller than the sum of its proper divisors (3557708652).

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

2668281468 is a wasteful number, since it uses less digits than its factorization.

2668281468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222356796 (or 222356794 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 51.

The square root of 2668281468 is about 51655.4108298443. The cubic root of 2668281468 is about 1387.0024023979.

The spelling of 2668281468 in words is "two billion, six hundred sixty-eight million, two hundred eighty-one thousand, four hundred sixty-eight".