680000000089 has 4 divisors (see below), whose sum is σ = 680365396900. Its totient is φ = 679634603280.

The previous prime is 680000000059. The next prime is 680000000101. The reversal of 680000000089 is 980000000086.

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 8064040000 + 671935960089 = 89800^2 + 819717^2 .

It is a cyclic number.

It is not a de Polignac number, because 680000000089 - 2¹⁹ = 679999475801 is a prime.

680000000089 is a strobogrammatic number because it is the same when read upside-down.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (680000000059) 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 3 ways as a sum of consecutive naturals, for example, 182695614 + ... + 182699335.

It is an arithmetic number, because the mean of its divisors is an integer number (170091349225).

Almost surely, 2^680000000089 is an apocalyptic number.

It is an amenable number.

680000000089 is a deficient number, since it is larger than the sum of its proper divisors (365396811).

680000000089 is a wasteful number, since it uses less digits than its factorization.

680000000089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365396810.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 680000000089 in words is "six hundred eighty billion, eighty-nine", and thus it is an aban number.