2668009988005 has 16 divisors (see below), whose sum is σ = 3206105884800. Its totient is φ = 2131413041088.

The previous prime is 2668009987967. The next prime is 2668009988041. The reversal of 2668009988005 is 5008899008662.

It is a cyclic number.

It is not a de Polignac number, because 2668009988005 - 2¹¹ = 2668009985957 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22833471 + ... + 22950019.

It is an arithmetic number, because the mean of its divisors is an integer number (200381617800).

Almost surely, 2^{2668009988005} is an apocalyptic number.

It is an amenable number.

2668009988005 is a deficient number, since it is larger than the sum of its proper divisors (538095896795).

2668009988005 is a wasteful number, since it uses less digits than its factorization.

2668009988005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122940.

The product of its (nonzero) digits is 14929920, while the sum is 61.

The spelling of 2668009988005 in words is "two trillion, six hundred sixty-eight billion, nine million, nine hundred eighty-eight thousand, five".