853798579199 has 4 divisors (see below), whose sum is σ = 871964506464. Its totient is φ = 835632651936.

The previous prime is 853798579189. The next prime is 853798579223. The reversal of 853798579199 is 991975897358.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-853798579199 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 (853798579189) 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, 9082963562 + ... + 9082963655.

It is an arithmetic number, because the mean of its divisors is an integer number (217991126616).

Almost surely, 2^853798579199 is an apocalyptic number.

853798579199 is a deficient number, since it is larger than the sum of its proper divisors (18165927265).

853798579199 is a wasteful number, since it uses less digits than its factorization.

853798579199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18165927264.

The product of its digits is 1543147200, while the sum is 80.

The spelling of 853798579199 in words is "eight hundred fifty-three billion, seven hundred ninety-eight million, five hundred seventy-nine thousand, one hundred ninety-nine".