853553272321 has 2 divisors, whose sum is σ = 853553272322. Its totient is φ = 853553272320.

The previous prime is 853553272301. The next prime is 853553272331. The reversal of 853553272321 is 123272355358.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 832400769600 + 21152502721 = 912360^2 + 145439^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-853553272321 is a prime.

It is not a weakly prime, because it can be changed into another prime (853553272301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426776636160 + 426776636161.

It is an arithmetic number, because the mean of its divisors is an integer number (426776636161).

Almost surely, 2^853553272321 is an apocalyptic number.

It is an amenable number.

853553272321 is a deficient number, since it is larger than the sum of its proper divisors (1).

853553272321 is an equidigital number, since it uses as much as digits as its factorization.

853553272321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512000, while the sum is 46.

The spelling of 853553272321 in words is "eight hundred fifty-three billion, five hundred fifty-three million, two hundred seventy-two thousand, three hundred twenty-one".