12379898161 has 2 divisors, whose sum is σ = 12379898162. Its totient is φ = 12379898160.

The previous prime is 12379898129. The next prime is 12379898171. The reversal of 12379898161 is 16189897321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10068115600 + 2311782561 = 100340^2 + 48081^2 .

It is a cyclic number.

It is not a de Polignac number, because 12379898161 - 2⁵ = 12379898129 is a prime.

It is not a weakly prime, because it can be changed into another prime (12379898171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6189949080 + 6189949081.

It is an arithmetic number, because the mean of its divisors is an integer number (6189949081).

Almost surely, 2^12379898161 is an apocalyptic number.

It is an amenable number.

12379898161 is a deficient number, since it is larger than the sum of its proper divisors (1).

12379898161 is an equidigital number, since it uses as much as digits as its factorization.

12379898161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 55.

The spelling of 12379898161 in words is "twelve billion, three hundred seventy-nine million, eight hundred ninety-eight thousand, one hundred sixty-one".