80329059171905 has 8 divisors (see below), whose sum is σ = 98213642157672. Its totient is φ = 63050733236608.

The previous prime is 80329059171901. The next prime is 80329059171913. The reversal of 80329059171905 is 50917195092308.

It is a Cunningham number, because it is equal to 8962648²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 28918452697744 + 51410606474161 = 5377588^2 + 7170119^2 .

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 80329059171905 - 2² = 80329059171901 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80329059171901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151564262324 + ... + 151564262853.

It is an arithmetic number, because the mean of its divisors is an integer number (12276705269709).

Almost surely, 2^{80329059171905} is an apocalyptic number.

It is an amenable number.

80329059171905 is a deficient number, since it is larger than the sum of its proper divisors (17884582985767).

80329059171905 is a wasteful number, since it uses less digits than its factorization.

80329059171905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303128525235.

The product of its (nonzero) digits is 6123600, while the sum is 59.

The spelling of 80329059171905 in words is "eighty trillion, three hundred twenty-nine billion, fifty-nine million, one hundred seventy-one thousand, nine hundred five".