894809818452 has 24 divisors (see below), whose sum is σ = 2277697720032. Its totient is φ = 271154490400.

The previous prime is 894809818417. The next prime is 894809818459. The reversal of 894809818452 is 254818908498.

It is a super-2 number, since 2×894809818452² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (894809818459) by changing a digit.

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, 3389430999 + ... + 3389431262.

It is an arithmetic number, because the mean of its divisors is an integer number (94904071668).

Almost surely, 2^894809818452 is an apocalyptic number.

It is an amenable number.

894809818452 is an abundant number, since it is smaller than the sum of its proper divisors (1382887901580).

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

894809818452 is a wasteful number, since it uses less digits than its factorization.

894809818452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6778862279 (or 6778862277 counting only the distinct ones).

The product of its (nonzero) digits is 53084160, while the sum is 66.

The spelling of 894809818452 in words is "eight hundred ninety-four billion, eight hundred nine million, eight hundred eighteen thousand, four hundred fifty-two".