894188196728 has 32 divisors (see below), whose sum is σ = 1689991983360. Its totient is φ = 443528117760.

The previous prime is 894188196719. The next prime is 894188196731. The reversal of 894188196728 is 827691881498.

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, 1334900 + ... + 1889532.

It is an arithmetic number, because the mean of its divisors is an integer number (52812249480).

Almost surely, 2^894188196728 is an apocalyptic number.

It is an amenable number.

894188196728 is a deficient number, since it is larger than the sum of its proper divisors (795803786632).

894188196728 is a wasteful number, since it uses less digits than its factorization.

894188196728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556247 (or 556243 counting only the distinct ones).

The product of its digits is 111476736, while the sum is 71.

The spelling of 894188196728 in words is "eight hundred ninety-four billion, one hundred eighty-eight million, one hundred ninety-six thousand, seven hundred twenty-eight".