846173189089 has 4 divisors (see below), whose sum is σ = 846296132656. Its totient is φ = 846050245524.

The previous prime is 846173189027. The next prime is 846173189093. The reversal of 846173189089 is 980981371648.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 846173189089 - 2²⁷ = 846038971361 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 846173189089.

It is not an unprimeable number, because it can be changed into a prime (846173189189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61461459 + ... + 61475224.

It is an arithmetic number, because the mean of its divisors is an integer number (211574033164).

Almost surely, 2^846173189089 is an apocalyptic number.

It is an amenable number.

846173189089 is a deficient number, since it is larger than the sum of its proper divisors (122943567).

846173189089 is a wasteful number, since it uses less digits than its factorization.

846173189089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122943566.

The product of its (nonzero) digits is 20901888, while the sum is 64.

The spelling of 846173189089 in words is "eight hundred forty-six billion, one hundred seventy-three million, one hundred eighty-nine thousand, eighty-nine".