12237279797489 has 2 divisors, whose sum is σ = 12237279797490. Its totient is φ = 12237279797488.

The previous prime is 12237279797467. The next prime is 12237279797531. The reversal of 12237279797489 is 98479797273221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11836407206464 + 400872591025 = 3440408^2 + 633145^2 .

It is a cyclic number.

It is not a de Polignac number, because 12237279797489 - 2²⁰ = 12237278748913 is a prime.

It is not a weakly prime, because it can be changed into another prime (12237279797189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6118639898744 + 6118639898745.

It is an arithmetic number, because the mean of its divisors is an integer number (6118639898745).

Almost surely, 2^{12237279797489} is an apocalyptic number.

It is an amenable number.

12237279797489 is a deficient number, since it is larger than the sum of its proper divisors (1).

12237279797489 is an equidigital number, since it uses as much as digits as its factorization.

12237279797489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344252672, while the sum is 77.

The spelling of 12237279797489 in words is "twelve trillion, two hundred thirty-seven billion, two hundred seventy-nine million, seven hundred ninety-seven thousand, four hundred eighty-nine".