894778939117 has 16 divisors (see below), whose sum is σ = 1038498883200. Its totient is φ = 755117438400.

The previous prime is 894778939051. The next prime is 894778939147. The reversal of 894778939117 is 711939877498.

It is a cyclic number.

It is not a de Polignac number, because 894778939117 - 2¹⁵ = 894778906349 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 894778939117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (894778939147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3408642 + ... + 3661747.

It is an arithmetic number, because the mean of its divisors is an integer number (64906180200).

Almost surely, 2^894778939117 is an apocalyptic number.

It is an amenable number.

894778939117 is a deficient number, since it is larger than the sum of its proper divisors (143719944083).

894778939117 is a wasteful number, since it uses less digits than its factorization.

894778939117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7070676.

The product of its digits is 192036096, while the sum is 73.

The spelling of 894778939117 in words is "eight hundred ninety-four billion, seven hundred seventy-eight million, nine hundred thirty-nine thousand, one hundred seventeen".