68650812173 has 8 divisors (see below), whose sum is σ = 74462000760. Its totient is φ = 63036613120.

The previous prime is 68650812161. The next prime is 68650812257. The reversal of 68650812173 is 37121805686.

It can be written as a sum of positive squares in 4 ways, for example, as 3308205289 + 65342606884 = 57517^2 + 255622^2 .

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 68650812173 - 2¹⁰ = 68650811149 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68650812473) 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, 49246658 + ... + 49248051.

It is an arithmetic number, because the mean of its divisors is an integer number (9307750095).

Almost surely, 2^68650812173 is an apocalyptic number.

It is an amenable number.

68650812173 is a deficient number, since it is larger than the sum of its proper divisors (5811188587).

68650812173 is a wasteful number, since it uses less digits than its factorization.

68650812173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98494767.

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 68650812173 in words is "sixty-eight billion, six hundred fifty million, eight hundred twelve thousand, one hundred seventy-three".