1689198118 has 8 divisors (see below), whose sum is σ = 2542051512. Its totient is φ = 841847616.

The previous prime is 1689198113. The next prime is 1689198151. The reversal of 1689198118 is 8118919861.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1689198113) 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, 1374955 + ... + 1376182.

It is an arithmetic number, because the mean of its divisors is an integer number (317756439).

Almost surely, 2^1689198118 is an apocalyptic number.

1689198118 is a deficient number, since it is larger than the sum of its proper divisors (852853394).

1689198118 is a wasteful number, since it uses less digits than its factorization.

1689198118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2751446.

The product of its digits is 248832, while the sum is 52.

The square root of 1689198118 is about 41099.8554498675. The cubic root of 1689198118 is about 1190.9500024013.

The spelling of 1689198118 in words is "one billion, six hundred eighty-nine million, one hundred ninety-eight thousand, one hundred eighteen".