80271697806 has 12 divisors (see below), whose sum is σ = 173922011952. Its totient is φ = 26757232596.

The previous prime is 80271697801. The next prime is 80271697829. The reversal of 80271697806 is 60879617208.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80271697801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2229769366 + ... + 2229769401.

It is an arithmetic number, because the mean of its divisors is an integer number (14493500996).

Almost surely, 2^80271697806 is an apocalyptic number.

80271697806 is an abundant number, since it is smaller than the sum of its proper divisors (93650314146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80271697806 is a wasteful number, since it uses less digits than its factorization.

80271697806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4459538775 (or 4459538772 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The spelling of 80271697806 in words is "eighty billion, two hundred seventy-one million, six hundred ninety-seven thousand, eight hundred six".