853923853841 has 2 divisors, whose sum is σ = 853923853842. Its totient is φ = 853923853840.

The previous prime is 853923853819. The next prime is 853923853877. The reversal of 853923853841 is 148358329358.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 851190760000 + 2733093841 = 922600^2 + 52279^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-853923853841 is a prime.

It is not a weakly prime, because it can be changed into another prime (853923853801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426961926920 + 426961926921.

It is an arithmetic number, because the mean of its divisors is an integer number (426961926921).

Almost surely, 2^853923853841 is an apocalyptic number.

It is an amenable number.

853923853841 is a deficient number, since it is larger than the sum of its proper divisors (1).

853923853841 is an equidigital number, since it uses as much as digits as its factorization.

853923853841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24883200, while the sum is 59.

The spelling of 853923853841 in words is "eight hundred fifty-three billion, nine hundred twenty-three million, eight hundred fifty-three thousand, eight hundred forty-one".