80207090685 has 24 divisors (see below), whose sum is σ = 141381995040. Its totient is φ = 42052077792.

The previous prime is 80207090657. The next prime is 80207090707. The reversal of 80207090685 is 58609070208.

It is not a de Polignac number, because 80207090685 - 2¹³ = 80207082493 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 80207090685.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15102259 + ... + 15107568.

It is an arithmetic number, because the mean of its divisors is an integer number (5890916460).

Almost surely, 2^80207090685 is an apocalyptic number.

It is an amenable number.

80207090685 is a deficient number, since it is larger than the sum of its proper divisors (61174904355).

80207090685 is a wasteful number, since it uses less digits than its factorization.

80207090685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30209897 (or 30209894 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The spelling of 80207090685 in words is "eighty billion, two hundred seven million, ninety thousand, six hundred eighty-five".