12722045437 has 2 divisors, whose sum is σ = 12722045438. Its totient is φ = 12722045436.

The previous prime is 12722045411. The next prime is 12722045461. The reversal of 12722045437 is 73454022721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11054629881 + 1667415556 = 105141^2 + 40834^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12722045437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12722045396 and 12722045405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12722045537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6361022718 + 6361022719.

It is an arithmetic number, because the mean of its divisors is an integer number (6361022719).

Almost surely, 2^12722045437 is an apocalyptic number.

It is an amenable number.

12722045437 is a deficient number, since it is larger than the sum of its proper divisors (1).

12722045437 is an equidigital number, since it uses as much as digits as its factorization.

12722045437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94080, while the sum is 37.

The spelling of 12722045437 in words is "twelve billion, seven hundred twenty-two million, forty-five thousand, four hundred thirty-seven".