854865042179 has 2 divisors, whose sum is σ = 854865042180. Its totient is φ = 854865042178.

The previous prime is 854865042139. The next prime is 854865042181. The reversal of 854865042179 is 971240568458.

854865042179 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-854865042179 is a prime.

Together with 854865042181, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (854865042139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427432521089 + 427432521090.

It is an arithmetic number, because the mean of its divisors is an integer number (427432521090).

Almost surely, 2^854865042179 is an apocalyptic number.

854865042179 is a deficient number, since it is larger than the sum of its proper divisors (1).

854865042179 is an equidigital number, since it uses as much as digits as its factorization.

854865042179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19353600, while the sum is 59.

The spelling of 854865042179 in words is "eight hundred fifty-four billion, eight hundred sixty-five million, forty-two thousand, one hundred seventy-nine".