894423077856 has 576 divisors, whose sum is σ = 3261543667200. Its totient is φ = 225784627200.

The previous prime is 894423077843. The next prime is 894423077879. The reversal of 894423077856 is 658770324498.

894423077856 is a `hidden beast` number, since 8 + 94 + 423 + 0 + 7 + 78 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 894423077793 and 894423077802.

It is a congruent number.

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 95 ways as a sum of consecutive naturals, for example, 116442336 + ... + 116450016.

It is an arithmetic number, because the mean of its divisors is an integer number (5662402200).

Almost surely, 2^894423077856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 894423077856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1630771833600).

894423077856 is an abundant number, since it is smaller than the sum of its proper divisors (2367120589344).

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

894423077856 is a wasteful number, since it uses less digits than its factorization.

894423077856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7863 (or 7852 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 63.

The spelling of 894423077856 in words is "eight hundred ninety-four billion, four hundred twenty-three million, seventy-seven thousand, eight hundred fifty-six".