1689043273680 has 160 divisors (see below), whose sum is σ = 6056136382464. Its totient is φ = 381415592448.

The previous prime is 1689043273667. The next prime is 1689043273681. The reversal of 1689043273680 is 863723409861.

It is a self number, because there is not a number n which added to its sum of digits gives 1689043273680.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1689043273681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5917084 + ... + 6195963.

Almost surely, 2^{1689043273680} is an apocalyptic number.

1689043273680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1689043273680 is an abundant number, since it is smaller than the sum of its proper divisors (4367093108784).

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

1689043273680 is a wasteful number, since it uses less digits than its factorization.

1689043273680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12113153 (or 12113147 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 57.

The spelling of 1689043273680 in words is "one trillion, six hundred eighty-nine billion, forty-three million, two hundred seventy-three thousand, six hundred eighty".