12855964237 has 2 divisors, whose sum is σ = 12855964238. Its totient is φ = 12855964236.

The previous prime is 12855964229. The next prime is 12855964267. The reversal of 12855964237 is 73246955821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8608313961 + 4247650276 = 92781^2 + 65174^2 .

It is a cyclic number.

It is not a de Polignac number, because 12855964237 - 2³ = 12855964229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12855964267) 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, 6427982118 + 6427982119.

It is an arithmetic number, because the mean of its divisors is an integer number (6427982119).

Almost surely, 2^12855964237 is an apocalyptic number.

It is an amenable number.

12855964237 is a deficient number, since it is larger than the sum of its proper divisors (1).

12855964237 is an equidigital number, since it uses as much as digits as its factorization.

12855964237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3628800, while the sum is 52.

The spelling of 12855964237 in words is "twelve billion, eight hundred fifty-five million, nine hundred sixty-four thousand, two hundred thirty-seven".