12250904857 has 2 divisors, whose sum is σ = 12250904858. Its totient is φ = 12250904856.

The previous prime is 12250904821. The next prime is 12250904881. The reversal of 12250904857 is 75840905221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11314789641 + 936115216 = 106371^2 + 30596^2 .

It is a cyclic number.

It is not a de Polignac number, because 12250904857 - 2¹¹ = 12250902809 is a prime.

It is a super-3 number, since 3×12250904857³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (12250904657) 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 as a sum of consecutive naturals, namely, 6125452428 + 6125452429.

It is an arithmetic number, because the mean of its divisors is an integer number (6125452429).

Almost surely, 2^12250904857 is an apocalyptic number.

It is an amenable number.

12250904857 is a deficient number, since it is larger than the sum of its proper divisors (1).

12250904857 is an equidigital number, since it uses as much as digits as its factorization.

12250904857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 43.

The spelling of 12250904857 in words is "twelve billion, two hundred fifty million, nine hundred four thousand, eight hundred fifty-seven".