853216075460447 has 4 divisors (see below), whose sum is σ = 853216681903896. Its totient is φ = 853215469017000.

The previous prime is 853216075460407. The next prime is 853216075460467. The reversal of 853216075460447 is 744064570612358.

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 853216075460447 - 2¹² = 853216075456351 is a prime.

It is a super-2 number, since 2×853216075460447² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 853216075460447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853216075460407) 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, 301106429 + ... + 303926822.

It is an arithmetic number, because the mean of its divisors is an integer number (213304170475974).

Almost surely, 2^{853216075460447} is an apocalyptic number.

853216075460447 is a deficient number, since it is larger than the sum of its proper divisors (606443449).

853216075460447 is a wasteful number, since it uses less digits than its factorization.

853216075460447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606443448.

The product of its (nonzero) digits is 135475200, while the sum is 62.

The spelling of 853216075460447 in words is "eight hundred fifty-three trillion, two hundred sixteen billion, seventy-five million, four hundred sixty thousand, four hundred forty-seven".