80203026881 has 4 divisors (see below), whose sum is σ = 80204772564. Its totient is φ = 80201281200.

The previous prime is 80203026847. The next prime is 80203026929. The reversal of 80203026881 is 18862030208.

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 49159758400 + 31043268481 = 221720^2 + 176191^2 .

It is a cyclic number.

It is not a de Polignac number, because 80203026881 - 2¹⁰ = 80203025857 is a prime.

It is a super-2 number, since 2×80203026881² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80203026811) 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, 802010 + ... + 896451.

It is an arithmetic number, because the mean of its divisors is an integer number (20051193141).

Almost surely, 2^80203026881 is an apocalyptic number.

It is an amenable number.

80203026881 is a deficient number, since it is larger than the sum of its proper divisors (1745683).

80203026881 is a wasteful number, since it uses less digits than its factorization.

80203026881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745682.

The product of its (nonzero) digits is 36864, while the sum is 38.

The spelling of 80203026881 in words is "eighty billion, two hundred three million, twenty-six thousand, eight hundred eighty-one".