80841043105 has 4 divisors (see below), whose sum is σ = 97009251732. Its totient is φ = 64672834480.

The previous prime is 80841043099. The next prime is 80841043147. The reversal of 80841043105 is 50134014808.

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 43958992896 + 36882050209 = 209664^2 + 192047^2 .

It is not a de Polignac number, because 80841043105 - 2³¹ = 78693559457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8084104306 + ... + 8084104315.

It is an arithmetic number, because the mean of its divisors is an integer number (24252312933).

Almost surely, 2^80841043105 is an apocalyptic number.

It is an amenable number.

80841043105 is a deficient number, since it is larger than the sum of its proper divisors (16168208627).

80841043105 is a wasteful number, since it uses less digits than its factorization.

80841043105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16168208626.

The product of its (nonzero) digits is 15360, while the sum is 34.

The spelling of 80841043105 in words is "eighty billion, eight hundred forty-one million, forty-three thousand, one hundred five".