68034107743781 has 8 divisors (see below), whose sum is σ = 68289786993240. Its totient is φ = 67778852156928.

The previous prime is 68034107743709. The next prime is 68034107743879. The reversal of 68034107743781 is 18734770143086.

It can be written as a sum of positive squares in 4 ways, for example, as 40435990744900 + 27598116998881 = 6358930^2 + 5253391^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68034107743781 is a prime.

It is a super-2 number, since 2×68034107743781² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68034107743781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68034107763781) 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, 105593876 + ... + 106236221.

It is an arithmetic number, because the mean of its divisors is an integer number (8536223374155).

Almost surely, 2^{68034107743781} is an apocalyptic number.

It is an amenable number.

68034107743781 is a deficient number, since it is larger than the sum of its proper divisors (255679249459).

68034107743781 is a wasteful number, since it uses less digits than its factorization.

68034107743781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211831303.

The product of its (nonzero) digits is 18966528, while the sum is 59.

The spelling of 68034107743781 in words is "sixty-eight trillion, thirty-four billion, one hundred seven million, seven hundred forty-three thousand, seven hundred eighty-one".