80539671602881 has 4 divisors (see below), whose sum is σ = 80730977236564. Its totient is φ = 80348365969200.

The previous prime is 80539671602851. The next prime is 80539671602891. The reversal of 80539671602881 is 18820617693508.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25046111242881 + 55493560360000 = 5004609^2 + 7449400^2 .

It is a cyclic number.

It is not a de Polignac number, because 80539671602881 - 2²³ = 80539663214273 is a prime.

It is a super-2 number, since 2×80539671602881² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80539671602851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95652816210 + ... + 95652817051.

It is an arithmetic number, because the mean of its divisors is an integer number (20182744309141).

Almost surely, 2^{80539671602881} is an apocalyptic number.

It is an amenable number.

80539671602881 is a deficient number, since it is larger than the sum of its proper divisors (191305633683).

80539671602881 is a wasteful number, since it uses less digits than its factorization.

80539671602881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191305633682.

The product of its (nonzero) digits is 34836480, while the sum is 64.

The spelling of 80539671602881 in words is "eighty trillion, five hundred thirty-nine billion, six hundred seventy-one million, six hundred two thousand, eight hundred eighty-one".