12895394491 has 8 divisors (see below), whose sum is σ = 14774349024. Its totient is φ = 11025628800.

The previous prime is 12895394443. The next prime is 12895394513. The reversal of 12895394491 is 19449359821.

It is a happy number.

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 12895394491 - 2¹¹ = 12895392443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12895394431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2294200 + ... + 2299813.

It is an arithmetic number, because the mean of its divisors is an integer number (1846793628).

Almost surely, 2^12895394491 is an apocalyptic number.

12895394491 is a deficient number, since it is larger than the sum of its proper divisors (1878954533).

12895394491 is an equidigital number, since it uses as much as digits as its factorization.

12895394491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4594421.

The product of its digits is 2799360, while the sum is 55.

The spelling of 12895394491 in words is "twelve billion, eight hundred ninety-five million, three hundred ninety-four thousand, four hundred ninety-one".