853568173083 has 4 divisors (see below), whose sum is σ = 1138090897448. Its totient is φ = 569045448720.

The previous prime is 853568173067. The next prime is 853568173097. The reversal of 853568173083 is 380371865358.

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

It is not a de Polignac number, because 853568173083 - 2⁴ = 853568173067 is a prime.

It is a super-2 number, since 2×853568173083² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (853568174083) 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 3 ways as a sum of consecutive naturals, for example, 142261362178 + ... + 142261362183.

It is an arithmetic number, because the mean of its divisors is an integer number (284522724362).

Almost surely, 2^853568173083 is an apocalyptic number.

853568173083 is a deficient number, since it is larger than the sum of its proper divisors (284522724365).

853568173083 is a wasteful number, since it uses less digits than its factorization.

853568173083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284522724364.

The product of its (nonzero) digits is 14515200, while the sum is 57.

The spelling of 853568173083 in words is "eight hundred fifty-three billion, five hundred sixty-eight million, one hundred seventy-three thousand, eighty-three".