846691196647 has 4 divisors (see below), whose sum is σ = 852782500360. Its totient is φ = 840599892936.

The previous prime is 846691196633. The next prime is 846691196693. The reversal of 846691196647 is 746691196648.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 846691196647 - 2²³ = 846682808039 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 (846691196627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3045651648 + ... + 3045651925.

It is an arithmetic number, because the mean of its divisors is an integer number (213195625090).

Almost surely, 2^846691196647 is an apocalyptic number.

846691196647 is a deficient number, since it is larger than the sum of its proper divisors (6091303713).

846691196647 is a wasteful number, since it uses less digits than its factorization.

846691196647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6091303712.

The product of its digits is 94058496, while the sum is 67.

Subtracting from 846691196647 its reverse (746691196648), we obtain a palindrome (99999999999).

The spelling of 846691196647 in words is "eight hundred forty-six billion, six hundred ninety-one million, one hundred ninety-six thousand, six hundred forty-seven".