12236750857 has 4 divisors (see below), whose sum is σ = 12239568900. Its totient is φ = 12233932816.

The previous prime is 12236750831. The next prime is 12236750873. The reversal of 12236750857 is 75805763221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75805763221 = 37057 ⋅2045653.

It can be written as a sum of positive squares in 2 ways, for example, as 4571923456 + 7664827401 = 67616^2 + 87549^2 .

It is a cyclic number.

It is not a de Polignac number, because 12236750857 - 2¹⁵ = 12236718089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12236750957) 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 3 ways as a sum of consecutive naturals, for example, 1402498 + ... + 1411195.

It is an arithmetic number, because the mean of its divisors is an integer number (3059892225).

Almost surely, 2^12236750857 is an apocalyptic number.

It is an amenable number.

12236750857 is a deficient number, since it is larger than the sum of its proper divisors (2818043).

12236750857 is an equidigital number, since it uses as much as digits as its factorization.

12236750857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2818042.

The product of its (nonzero) digits is 705600, while the sum is 46.

The spelling of 12236750857 in words is "twelve billion, two hundred thirty-six million, seven hundred fifty thousand, eight hundred fifty-seven".