853319915317 has 4 divisors (see below), whose sum is σ = 858971040736. Its totient is φ = 847668789900.

The previous prime is 853319915303. The next prime is 853319915323. The reversal of 853319915317 is 713519913358.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 853319915317 - 2²³ = 853311526709 is a prime.

It is a super-2 number, since 2×853319915317² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853319913317) 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, 2825562483 + ... + 2825562784.

It is an arithmetic number, because the mean of its divisors is an integer number (214742760184).

Almost surely, 2^853319915317 is an apocalyptic number.

It is an amenable number.

853319915317 is a deficient number, since it is larger than the sum of its proper divisors (5651125419).

853319915317 is a wasteful number, since it uses less digits than its factorization.

853319915317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5651125418.

The product of its digits is 3061800, while the sum is 55.

The spelling of 853319915317 in words is "eight hundred fifty-three billion, three hundred nineteen million, nine hundred fifteen thousand, three hundred seventeen".