1678106845589 has 8 divisors (see below), whose sum is σ = 1715941706040. Its totient is φ = 1640500595136.

The previous prime is 1678106845573. The next prime is 1678106845603. The reversal of 1678106845589 is 9855486018761.

It can be written as a sum of positive squares in 4 ways, for example, as 506047276900 + 1172059568689 = 711370^2 + 1082617^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1678106845589 - 2⁴ = 1678106845573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1678106845189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57137654 + ... + 57167015.

It is an arithmetic number, because the mean of its divisors is an integer number (214492713255).

Almost surely, 2^{1678106845589} is an apocalyptic number.

It is an amenable number.

1678106845589 is a deficient number, since it is larger than the sum of its proper divisors (37834860451).

1678106845589 is a wasteful number, since it uses less digits than its factorization.

1678106845589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114304999.

The product of its (nonzero) digits is 116121600, while the sum is 68.

The spelling of 1678106845589 in words is "one trillion, six hundred seventy-eight billion, one hundred six million, eight hundred forty-five thousand, five hundred eighty-nine".