68268288090309 has 8 divisors (see below), whose sum is σ = 91034249160480. Its totient is φ = 45507259540176.

The previous prime is 68268288090271. The next prime is 68268288090319. The reversal of 68268288090309 is 90309088286286.

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

It is not a de Polignac number, because 68268288090309 - 2⁷ = 68268288090181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68268288090319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1233097714 + ... + 1233153075.

It is an arithmetic number, because the mean of its divisors is an integer number (11379281145060).

Almost surely, 2^{68268288090309} is an apocalyptic number.

It is an amenable number.

68268288090309 is a deficient number, since it is larger than the sum of its proper divisors (22765961070171).

68268288090309 is a wasteful number, since it uses less digits than its factorization.

68268288090309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2466260019.

The product of its (nonzero) digits is 143327232, while the sum is 69.

The spelling of 68268288090309 in words is "sixty-eight trillion, two hundred sixty-eight billion, two hundred eighty-eight million, ninety thousand, three hundred nine".