680304887071 has 4 divisors (see below), whose sum is σ = 683275651000. Its totient is φ = 677334123144.

The previous prime is 680304887063. The next prime is 680304887089. The reversal of 680304887071 is 170788403086.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 680304887071 - 2³ = 680304887063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680304887021) 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, 1485381621 + ... + 1485382078.

It is an arithmetic number, because the mean of its divisors is an integer number (170818912750).

Almost surely, 2^680304887071 is an apocalyptic number.

680304887071 is a deficient number, since it is larger than the sum of its proper divisors (2970763929).

680304887071 is a wasteful number, since it uses less digits than its factorization.

680304887071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2970763928.

The product of its (nonzero) digits is 1806336, while the sum is 52.

The spelling of 680304887071 in words is "six hundred eighty billion, three hundred four million, eight hundred eighty-seven thousand, seventy-one".