268698417791999 has 16 divisors (see below), whose sum is σ = 290039556280320. Its totient is φ = 247453526097120.

The previous prime is 268698417791989. The next prime is 268698417792019. The reversal of 268698417791999 is 999197714896862.

It is a cyclic number.

It is not a de Polignac number, because 268698417791999 - 2²⁸ = 268698149356543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268698417791989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21543944 + ... + 31647090.

It is an arithmetic number, because the mean of its divisors is an integer number (18127472267520).

Almost surely, 2^{268698417791999} is an apocalyptic number.

268698417791999 is a deficient number, since it is larger than the sum of its proper divisors (21341138488321).

268698417791999 is a wasteful number, since it uses less digits than its factorization.

268698417791999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10107910.

The product of its digits is 53331167232, while the sum is 95.

The spelling of 268698417791999 in words is "two hundred sixty-eight trillion, six hundred ninety-eight billion, four hundred seventeen million, seven hundred ninety-one thousand, nine hundred ninety-nine".