689183012809 has 8 divisors (see below), whose sum is σ = 695914464320. Its totient is φ = 682482090096.

The previous prime is 689183012807. The next prime is 689183012827. The reversal of 689183012809 is 908210381986.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 689183012809 - 2¹ = 689183012807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 689183012809.

It is not an unprimeable number, because it can be changed into a prime (689183012807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7586829 + ... + 7677130.

It is an arithmetic number, because the mean of its divisors is an integer number (86989308040).

Almost surely, 2^689183012809 is an apocalyptic number.

It is an amenable number.

689183012809 is a deficient number, since it is larger than the sum of its proper divisors (6731451511).

689183012809 is a wasteful number, since it uses less digits than its factorization.

689183012809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15264399.

The product of its (nonzero) digits is 1492992, while the sum is 55.

The spelling of 689183012809 in words is "six hundred eighty-nine billion, one hundred eighty-three million, twelve thousand, eight hundred nine".