854444444473 has 2 divisors, whose sum is σ = 854444444474. Its totient is φ = 854444444472.

The previous prime is 854444444471. The next prime is 854444444509. The reversal of 854444444473 is 374444444458.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 815856949504 + 38587494969 = 903248^2 + 196437^2 .

It is a cyclic number.

It is not a de Polignac number, because 854444444473 - 2¹ = 854444444471 is a prime.

Together with 854444444471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (854444444471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427222222236 + 427222222237.

It is an arithmetic number, because the mean of its divisors is an integer number (427222222237).

Almost surely, 2^854444444473 is an apocalyptic number.

It is an amenable number.

854444444473 is a deficient number, since it is larger than the sum of its proper divisors (1).

854444444473 is an equidigital number, since it uses as much as digits as its factorization.

854444444473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55050240, while the sum is 55.

The spelling of 854444444473 in words is "eight hundred fifty-four billion, four hundred forty-four million, four hundred forty-four thousand, four hundred seventy-three".