1689847369912 has 64 divisors (see below), whose sum is σ = 3463783989120. Its totient is φ = 768141525888.

The previous prime is 1689847369901. The next prime is 1689847369913. The reversal of 1689847369912 is 2199637489861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1689847369913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41697163 + ... + 41737669.

It is an arithmetic number, because the mean of its divisors is an integer number (54121624830).

Almost surely, 2^{1689847369912} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1689847369912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1731891994560).

1689847369912 is an abundant number, since it is smaller than the sum of its proper divisors (1773936619208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1689847369912 is a wasteful number, since it uses less digits than its factorization.

1689847369912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46580 (or 46576 counting only the distinct ones).

The product of its digits is 282175488, while the sum is 73.

The spelling of 1689847369912 in words is "one trillion, six hundred eighty-nine billion, eight hundred forty-seven million, three hundred sixty-nine thousand, nine hundred twelve".