846978320913 has 16 divisors (see below), whose sum is σ = 1172463487680. Its totient is φ = 543213268416.

The previous prime is 846978320893. The next prime is 846978320917. The reversal of 846978320913 is 319023879648.

It is not a de Polignac number, because 846978320913 - 2⁶ = 846978320849 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (846978320917) 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 15 ways as a sum of consecutive naturals, for example, 17548795 + ... + 17596992.

It is an arithmetic number, because the mean of its divisors is an integer number (73278967980).

Almost surely, 2^846978320913 is an apocalyptic number.

It is an amenable number.

846978320913 is a deficient number, since it is larger than the sum of its proper divisors (325485166767).

846978320913 is a wasteful number, since it uses less digits than its factorization.

846978320913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35146096.

The product of its (nonzero) digits is 15676416, while the sum is 60.

The spelling of 846978320913 in words is "eight hundred forty-six billion, nine hundred seventy-eight million, three hundred twenty thousand, nine hundred thirteen".