853421161647 has 8 divisors (see below), whose sum is σ = 1145531761200. Its totient is φ = 565129001600.

The previous prime is 853421161643. The next prime is 853421161661. The reversal of 853421161647 is 746161124358.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 853421161647 - 2² = 853421161643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 853421161596 and 853421161605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853421161643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 954609354 + ... + 954610247.

It is an arithmetic number, because the mean of its divisors is an integer number (143191470150).

Almost surely, 2^853421161647 is an apocalyptic number.

853421161647 is a deficient number, since it is larger than the sum of its proper divisors (292110599553).

853421161647 is a wasteful number, since it uses less digits than its factorization.

853421161647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909219753.

The product of its digits is 967680, while the sum is 48.

The spelling of 853421161647 in words is "eight hundred fifty-three billion, four hundred twenty-one million, one hundred sixty-one thousand, six hundred forty-seven".