12625244417 has 2 divisors, whose sum is σ = 12625244418. Its totient is φ = 12625244416.

The previous prime is 12625244347. The next prime is 12625244441. The reversal of 12625244417 is 71444252621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8164206736 + 4461037681 = 90356^2 + 66791^2 .

It is a cyclic number.

It is not a de Polignac number, because 12625244417 - 2¹² = 12625240321 is a prime.

It is not a weakly prime, because it can be changed into another prime (12625234417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6312622208 + 6312622209.

It is an arithmetic number, because the mean of its divisors is an integer number (6312622209).

Almost surely, 2^12625244417 is an apocalyptic number.

It is an amenable number.

12625244417 is a deficient number, since it is larger than the sum of its proper divisors (1).

12625244417 is an equidigital number, since it uses as much as digits as its factorization.

12625244417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107520, while the sum is 38.

The spelling of 12625244417 in words is "twelve billion, six hundred twenty-five million, two hundred forty-four thousand, four hundred seventeen".