12105894907 has 8 divisors (see below), whose sum is σ = 12175555392. Its totient is φ = 12036405000.

The previous prime is 12105894851. The next prime is 12105894917. The reversal of 12105894907 is 70949850121.

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 12105894907 - 2³¹ = 9958411259 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12105894917) 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, 101088 + ... + 185554.

It is an arithmetic number, because the mean of its divisors is an integer number (1521944424).

Almost surely, 2^12105894907 is an apocalyptic number.

12105894907 is a deficient number, since it is larger than the sum of its proper divisors (69660485).

12105894907 is an equidigital number, since it uses as much as digits as its factorization.

12105894907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85289.

The product of its (nonzero) digits is 181440, while the sum is 46.

The spelling of 12105894907 in words is "twelve billion, one hundred five million, eight hundred ninety-four thousand, nine hundred seven".