12267680461 has 2 divisors, whose sum is σ = 12267680462. Its totient is φ = 12267680460.

The previous prime is 12267680449. The next prime is 12267680527. The reversal of 12267680461 is 16408676221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8785500361 + 3482180100 = 93731^2 + 59010^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12267680461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12267680431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6133840230 + 6133840231.

It is an arithmetic number, because the mean of its divisors is an integer number (6133840231).

Almost surely, 2^12267680461 is an apocalyptic number.

It is an amenable number.

12267680461 is a deficient number, since it is larger than the sum of its proper divisors (1).

12267680461 is an equidigital number, since it uses as much as digits as its factorization.

12267680461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 43.

The spelling of 12267680461 in words is "twelve billion, two hundred sixty-seven million, six hundred eighty thousand, four hundred sixty-one".