854202921811 has 2 divisors, whose sum is σ = 854202921812. Its totient is φ = 854202921810.

The previous prime is 854202921773. The next prime is 854202921829. The reversal of 854202921811 is 118129202458.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 854202921811 - 2²⁵ = 854169367379 is a prime.

It is not a weakly prime, because it can be changed into another prime (854202921841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427101460905 + 427101460906.

It is an arithmetic number, because the mean of its divisors is an integer number (427101460906).

Almost surely, 2^854202921811 is an apocalyptic number.

854202921811 is a deficient number, since it is larger than the sum of its proper divisors (1).

854202921811 is an equidigital number, since it uses as much as digits as its factorization.

854202921811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 43.

The spelling of 854202921811 in words is "eight hundred fifty-four billion, two hundred two million, nine hundred twenty-one thousand, eight hundred eleven".