854202921800 has 36 divisors (see below), whose sum is σ = 1986052182795. Its totient is φ = 341675940480.

The previous prime is 854202921773. The next prime is 854202921811. The reversal of 854202921800 is 8129202458.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 672114670276 + 182088251524 = 819826^2 + 426718^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=653530.

It is a super-2 number, since 2×854202921800² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 13037924 + ... + 13103276.

Almost surely, 2^854202921800 is an apocalyptic number.

It is an amenable number.

854202921800 is an abundant number, since it is smaller than the sum of its proper divisors (1131849260995).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

854202921800 is an frugal number, since it uses more digits than its factorization.

854202921800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130722 (or 65360 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 854202921800 in words is "eight hundred fifty-four billion, two hundred two million, nine hundred twenty-one thousand, eight hundred".