894854810189 has 2 divisors, whose sum is σ = 894854810190. Its totient is φ = 894854810188.

The previous prime is 894854810173. The next prime is 894854810257. The reversal of 894854810189 is 981018458498.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 886484390089 + 8370420100 = 941533^2 + 91490^2 .

It is a cyclic number.

It is not a de Polignac number, because 894854810189 - 2⁴ = 894854810173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (894854810089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447427405094 + 447427405095.

It is an arithmetic number, because the mean of its divisors is an integer number (447427405095).

Almost surely, 2^894854810189 is an apocalyptic number.

It is an amenable number.

894854810189 is a deficient number, since it is larger than the sum of its proper divisors (1).

894854810189 is an equidigital number, since it uses as much as digits as its factorization.

894854810189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26542080, while the sum is 65.

The spelling of 894854810189 in words is "eight hundred ninety-four billion, eight hundred fifty-four million, eight hundred ten thousand, one hundred eighty-nine".