80209375687 has 36 divisors (see below), whose sum is σ = 94479734160. Its totient is φ = 66703995072.

The previous prime is 80209375669. The next prime is 80209375699. The reversal of 80209375687 is 78657390208.

It is a de Polignac number, because none of the positive numbers 2^k-80209375687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80209375487) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 196110739 + ... + 196111147.

It is an arithmetic number, because the mean of its divisors is an integer number (2624437060).

Almost surely, 2^80209375687 is an apocalyptic number.

80209375687 is a deficient number, since it is larger than the sum of its proper divisors (14270358473).

80209375687 is an frugal number, since it uses more digits than its factorization.

80209375687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 55.

The spelling of 80209375687 in words is "eighty billion, two hundred nine million, three hundred seventy-five thousand, six hundred eighty-seven".