12050646785 has 4 divisors (see below), whose sum is σ = 14460776148. Its totient is φ = 9640517424.

The previous prime is 12050646781. The next prime is 12050646791. The reversal of 12050646785 is 58764605021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58764605021 = 23 ⋅2554982827.

It can be written as a sum of positive squares in 2 ways, for example, as 2900576449 + 9150070336 = 53857^2 + 95656^2 .

It is a cyclic number.

It is not a de Polignac number, because 12050646785 - 2² = 12050646781 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12050646781) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1205064674 + ... + 1205064683.

It is an arithmetic number, because the mean of its divisors is an integer number (3615194037).

Almost surely, 2^12050646785 is an apocalyptic number.

It is an amenable number.

12050646785 is a deficient number, since it is larger than the sum of its proper divisors (2410129363).

12050646785 is an equidigital number, since it uses as much as digits as its factorization.

12050646785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2410129362.

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 12050646785 in words is "twelve billion, fifty million, six hundred forty-six thousand, seven hundred eighty-five".