894991434991 has 8 divisors (see below), whose sum is σ = 896064724800. Its totient is φ = 893918277120.

The previous prime is 894991434977. The next prime is 894991435057. The reversal of 894991434991 is 199434199498.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 894991434991 - 2²³ = 894983046383 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 894991434991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (894991435991) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 22859130 + ... + 22898248.

It is an arithmetic number, because the mean of its divisors is an integer number (112008090600).

Almost surely, 2^894991434991 is an apocalyptic number.

894991434991 is a deficient number, since it is larger than the sum of its proper divisors (1073289809).

894991434991 is a wasteful number, since it uses less digits than its factorization.

894991434991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65969.

The product of its digits is 90699264, while the sum is 70.

The spelling of 894991434991 in words is "eight hundred ninety-four billion, nine hundred ninety-one million, four hundred thirty-four thousand, nine hundred ninety-one".