855823454833 has 4 divisors (see below), whose sum is σ = 856378105408. Its totient is φ = 855268804260.

The previous prime is 855823454803. The next prime is 855823454881. The reversal of 855823454833 is 338454328558.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 338454328558 = 2 ⋅169227164279.

It is a cyclic number.

It is not a de Polignac number, because 855823454833 - 2³⁷ = 718384501361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (855823454803) 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, 277322973 + ... + 277326058.

It is an arithmetic number, because the mean of its divisors is an integer number (214094526352).

Almost surely, 2^855823454833 is an apocalyptic number.

It is an amenable number.

855823454833 is a deficient number, since it is larger than the sum of its proper divisors (554650575).

855823454833 is a wasteful number, since it uses less digits than its factorization.

855823454833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554650574.

The product of its digits is 55296000, while the sum is 58.

The spelling of 855823454833 in words is "eight hundred fifty-five billion, eight hundred twenty-three million, four hundred fifty-four thousand, eight hundred thirty-three".