846399609793 has 4 divisors (see below), whose sum is σ = 848227687168. Its totient is φ = 844571532420.

The previous prime is 846399609791. The next prime is 846399609817. The reversal of 846399609793 is 397906993648.

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 846399609793 - 2¹ = 846399609791 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (846399609791) 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 3 ways as a sum of consecutive naturals, for example, 914037993 + ... + 914038918.

It is an arithmetic number, because the mean of its divisors is an integer number (212056921792).

Almost surely, 2^846399609793 is an apocalyptic number.

It is an amenable number.

846399609793 is a deficient number, since it is larger than the sum of its proper divisors (1828077375).

846399609793 is a wasteful number, since it uses less digits than its factorization.

846399609793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828077374.

The product of its (nonzero) digits is 476171136, while the sum is 73.

The spelling of 846399609793 in words is "eight hundred forty-six billion, three hundred ninety-nine million, six hundred nine thousand, seven hundred ninety-three".