854445370561 has 4 divisors (see below), whose sum is σ = 854618445252. Its totient is φ = 854272295872.

The previous prime is 854445370547. The next prime is 854445370589. The reversal of 854445370561 is 165073544458.

854445370561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 148583266225 + 705862104336 = 385465^2 + 840156^2 .

It is a cyclic number.

It is not a de Polignac number, because 854445370561 - 2¹⁹ = 854444846273 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 854445370499 and 854445370508.

It is not an unprimeable number, because it can be changed into a prime (854445370531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86529940 + ... + 86539813.

It is an arithmetic number, because the mean of its divisors is an integer number (213654611313).

Almost surely, 2^854445370561 is an apocalyptic number.

It is an amenable number.

854445370561 is a deficient number, since it is larger than the sum of its proper divisors (173074691).

854445370561 is a wasteful number, since it uses less digits than its factorization.

854445370561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173074690.

The product of its (nonzero) digits is 8064000, while the sum is 52.

The spelling of 854445370561 in words is "eight hundred fifty-four billion, four hundred forty-five million, three hundred seventy thousand, five hundred sixty-one".