12109442785185 has 8 divisors (see below), whose sum is σ = 19375108456320. Its totient is φ = 6458369485424.

The previous prime is 12109442785163. The next prime is 12109442785247. The reversal of 12109442785185 is 58158724490121.

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 12109442785185 - 2¹³ = 12109442776993 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403648092825 + ... + 403648092854.

It is an arithmetic number, because the mean of its divisors is an integer number (2421888557040).

Almost surely, 2^{12109442785185} is an apocalyptic number.

12109442785185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12109442785185 is a deficient number, since it is larger than the sum of its proper divisors (7265665671135).

12109442785185 is an equidigital number, since it uses as much as digits as its factorization.

12109442785185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807296185687.

The product of its (nonzero) digits is 6451200, while the sum is 57.

The spelling of 12109442785185 in words is "twelve trillion, one hundred nine billion, four hundred forty-two million, seven hundred eighty-five thousand, one hundred eighty-five".