75868723717 has 8 divisors (see below), whose sum is σ = 80355896856. Its totient is φ = 71384251392.

The previous prime is 75868723687. The next prime is 75868723787. The reversal of 75868723717 is 71732786857.

It can be written as a sum of positive squares in 4 ways, for example, as 20781817281 + 55086906436 = 144159^2 + 234706^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 75868723717 - 2³¹ = 73721240069 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 (75868723787) 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, 617218 + ... + 729859.

It is an arithmetic number, because the mean of its divisors is an integer number (10044487107).

Almost surely, 2^75868723717 is an apocalyptic number.

It is an amenable number.

75868723717 is a deficient number, since it is larger than the sum of its proper divisors (4487173139).

75868723717 is a wasteful number, since it uses less digits than its factorization.

75868723717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350407.

The product of its digits is 27659520, while the sum is 61.

The spelling of 75868723717 in words is "seventy-five billion, eight hundred sixty-eight million, seven hundred twenty-three thousand, seven hundred seventeen".