849169793723 has 4 divisors (see below), whose sum is σ = 849304226160. Its totient is φ = 849035361288.

The previous prime is 849169793683. The next prime is 849169793743. The reversal of 849169793723 is 327397961948.

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 849169793723 - 2⁸ = 849169793467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (849169793743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67206743 + ... + 67219376.

It is an arithmetic number, because the mean of its divisors is an integer number (212326056540).

Almost surely, 2^849169793723 is an apocalyptic number.

849169793723 is a deficient number, since it is larger than the sum of its proper divisors (134432437).

849169793723 is a wasteful number, since it uses less digits than its factorization.

849169793723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134432436.

The product of its digits is 123451776, while the sum is 68.

The spelling of 849169793723 in words is "eight hundred forty-nine billion, one hundred sixty-nine million, seven hundred ninety-three thousand, seven hundred twenty-three".