68785641031079 has 24 divisors (see below), whose sum is σ = 81719718485760. Its totient is φ = 57703752325296.

The previous prime is 68785641031069. The next prime is 68785641031109. The reversal of 68785641031079 is 97013014658786.

It is not a de Polignac number, because 68785641031079 - 2²⁰ = 68785639982503 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 (68785641031039) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 171186284 + ... + 171587630.

It is an arithmetic number, because the mean of its divisors is an integer number (3404988270240).

Almost surely, 2^{68785641031079} is an apocalyptic number.

68785641031079 is a deficient number, since it is larger than the sum of its proper divisors (12934077454681).

68785641031079 is a wasteful number, since it uses less digits than its factorization.

68785641031079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475827 (or 475820 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 65.

The spelling of 68785641031079 in words is "sixty-eight trillion, seven hundred eighty-five billion, six hundred forty-one million, thirty-one thousand, seventy-nine".