68143838266 has 8 divisors (see below), whose sum is σ = 116818008480. Its totient is φ = 29204502108.

The previous prime is 68143838251. The next prime is 68143838267. The reversal of 68143838266 is 66283834186.

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

It is not an unprimeable number, because it can be changed into a prime (68143838267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2433708496 + ... + 2433708523.

It is an arithmetic number, because the mean of its divisors is an integer number (14602251060).

Almost surely, 2^68143838266 is an apocalyptic number.

68143838266 is a deficient number, since it is larger than the sum of its proper divisors (48674170214).

68143838266 is a wasteful number, since it uses less digits than its factorization.

68143838266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4867417028.

The product of its digits is 7962624, while the sum is 55.

The spelling of 68143838266 in words is "sixty-eight billion, one hundred forty-three million, eight hundred thirty-eight thousand, two hundred sixty-six".