1689218914 has 8 divisors (see below), whose sum is σ = 2539032768. Its totient is φ = 842874660.

The previous prime is 1689218897. The next prime is 1689218929. The reversal of 1689218914 is 4198129861.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 866182 + ... + 868129.

It is an arithmetic number, because the mean of its divisors is an integer number (317379096).

Almost surely, 2^1689218914 is an apocalyptic number.

1689218914 is a deficient number, since it is larger than the sum of its proper divisors (849813854).

1689218914 is a wasteful number, since it uses less digits than its factorization.

1689218914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1734800.

The product of its digits is 248832, while the sum is 49.

The square root of 1689218914 is about 41100.1084426793. The cubic root of 1689218914 is about 1190.9548897093.

The spelling of 1689218914 in words is "one billion, six hundred eighty-nine million, two hundred eighteen thousand, nine hundred fourteen".