2688909410881 has 8 divisors (see below), whose sum is σ = 2696746901760. Its totient is φ = 2681073851232.

The previous prime is 2688909410861. The next prime is 2688909410893. The reversal of 2688909410881 is 1880149098862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2688909410881 - 2¹⁷ = 2688909279809 is a prime.

It is a super-2 number, since 2×2688909410881² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2688909410861) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2329741 + ... + 3287173.

It is an arithmetic number, because the mean of its divisors is an integer number (337093362720).

Almost surely, 2^{2688909410881} is an apocalyptic number.

It is an amenable number.

2688909410881 is a deficient number, since it is larger than the sum of its proper divisors (7837490879).

2688909410881 is an equidigital number, since it uses as much as digits as its factorization.

2688909410881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965615.

The product of its (nonzero) digits is 15925248, while the sum is 64.

The spelling of 2688909410881 in words is "two trillion, six hundred eighty-eight billion, nine hundred nine million, four hundred ten thousand, eight hundred eighty-one".