851228854 has 16 divisors (see below), whose sum is σ = 1467688608. Its totient is φ = 362702592.

The previous prime is 851228843. The next prime is 851228881. The reversal of 851228854 is 458822158.

It is a self number, because there is not a number n which added to its sum of digits gives 851228854.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173307 + ... + 178150.

It is an arithmetic number, because the mean of its divisors is an integer number (91730538).

Almost surely, 2^851228854 is an apocalyptic number.

851228854 is a deficient number, since it is larger than the sum of its proper divisors (616459754).

851228854 is a wasteful number, since it uses less digits than its factorization.

851228854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351639.

The product of its digits is 204800, while the sum is 43.

The square root of 851228854 is about 29175.8265349930. The cubic root of 851228854 is about 947.7245092842.

The spelling of 851228854 in words is "eight hundred fifty-one million, two hundred twenty-eight thousand, eight hundred fifty-four".