894699019836 has 72 divisors (see below), whose sum is σ = 2396595618144. Its totient is φ = 280460144640.

The previous prime is 894699019787. The next prime is 894699019883. The reversal of 894699019836 is 638910996498.

894699019836 is a `hidden beast` number, since 89 + 469 + 9 + 0 + 1 + 9 + 83 + 6 = 666.

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 23 ways as a sum of consecutive naturals, for example, 150796 + ... + 1346156.

It is an arithmetic number, because the mean of its divisors is an integer number (33286050252).

Almost surely, 2^894699019836 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 894699019836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1198297809072).

894699019836 is an abundant number, since it is smaller than the sum of its proper divisors (1501896598308).

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

894699019836 is a wasteful number, since it uses less digits than its factorization.

894699019836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196611 (or 1196606 counting only the distinct ones).

The product of its (nonzero) digits is 181398528, while the sum is 72.

The spelling of 894699019836 in words is "eight hundred ninety-four billion, six hundred ninety-nine million, nineteen thousand, eight hundred thirty-six".