689031818092 has 12 divisors (see below), whose sum is σ = 1221069045280. Its totient is φ = 340154948016.

The previous prime is 689031818081. The next prime is 689031818099. The reversal of 689031818092 is 290818130986.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (689031818099) 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, 1090239903 + ... + 1090240534.

Almost surely, 2^689031818092 is an apocalyptic number.

It is an amenable number.

689031818092 is a deficient number, since it is larger than the sum of its proper divisors (532037227188).

689031818092 is a wasteful number, since it uses less digits than its factorization.

689031818092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180480520 (or 2180480518 counting only the distinct ones).

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

The spelling of 689031818092 in words is "six hundred eighty-nine billion, thirty-one million, eight hundred eighteen thousand, ninety-two".