856055093059 has 4 divisors (see below), whose sum is σ = 856078587616. Its totient is φ = 856031598504.

The previous prime is 856055093041. The next prime is 856055093119. The reversal of 856055093059 is 950390550658.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 950390550658 = 2 ⋅475195275329.

It is a cyclic number.

It is not a de Polignac number, because 856055093059 - 2⁵ = 856055093027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (856055093459) 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 3 ways as a sum of consecutive naturals, for example, 11692539 + ... + 11765524.

It is an arithmetic number, because the mean of its divisors is an integer number (214019646904).

Almost surely, 2^856055093059 is an apocalyptic number.

856055093059 is a deficient number, since it is larger than the sum of its proper divisors (23494557).

856055093059 is a wasteful number, since it uses less digits than its factorization.

856055093059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23494556.

The product of its (nonzero) digits is 7290000, while the sum is 55.

The spelling of 856055093059 in words is "eight hundred fifty-six billion, fifty-five million, ninety-three thousand, fifty-nine".