12451677197 has 2 divisors, whose sum is σ = 12451677198. Its totient is φ = 12451677196.

The previous prime is 12451677179. The next prime is 12451677209. The reversal of 12451677197 is 79177615421.

Together with previous prime (12451677179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11428892836 + 1022784361 = 106906^2 + 31981^2 .

It is an emirp because it is prime and its reverse (79177615421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12451677197 - 2¹⁴ = 12451660813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12451677127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6225838598 + 6225838599.

It is an arithmetic number, because the mean of its divisors is an integer number (6225838599).

Almost surely, 2^12451677197 is an apocalyptic number.

It is an amenable number.

12451677197 is a deficient number, since it is larger than the sum of its proper divisors (1).

12451677197 is an equidigital number, since it uses as much as digits as its factorization.

12451677197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 740880, while the sum is 50.

The spelling of 12451677197 in words is "twelve billion, four hundred fifty-one million, six hundred seventy-seven thousand, one hundred ninety-seven".