68020730173 has 16 divisors (see below), whose sum is σ = 77653956096. Its totient is φ = 58977928240.

The previous prime is 68020730161. The next prime is 68020730201. The reversal of 68020730173 is 37103702086.

It is not a de Polignac number, because 68020730173 - 2³³ = 59430795581 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 (68020730143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299611 + ... + 475192.

It is an arithmetic number, because the mean of its divisors is an integer number (4853372256).

Almost surely, 2^68020730173 is an apocalyptic number.

It is an amenable number.

68020730173 is a deficient number, since it is larger than the sum of its proper divisors (9633225923).

68020730173 is a wasteful number, since it uses less digits than its factorization.

68020730173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775184.

The product of its (nonzero) digits is 42336, while the sum is 37.

The spelling of 68020730173 in words is "sixty-eight billion, twenty million, seven hundred thirty thousand, one hundred seventy-three".