853900854455 has 24 divisors (see below), whose sum is σ = 1126728305136. Its totient is φ = 620783905280.

The previous prime is 853900854451. The next prime is 853900854473. The reversal of 853900854455 is 554458009358.

It is not a de Polignac number, because 853900854455 - 2² = 853900854451 is a prime.

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 853900854455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853900854451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1341884 + ... + 1873086.

It is an arithmetic number, because the mean of its divisors is an integer number (46947012714).

Almost surely, 2^853900854455 is an apocalyptic number.

853900854455 is a deficient number, since it is larger than the sum of its proper divisors (272827450681).

853900854455 is a wasteful number, since it uses less digits than its factorization.

853900854455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533887 (or 533876 counting only the distinct ones).

The product of its (nonzero) digits is 17280000, while the sum is 56.

The spelling of 853900854455 in words is "eight hundred fifty-three billion, nine hundred million, eight hundred fifty-four thousand, four hundred fifty-five".