12722574569 has 2 divisors, whose sum is σ = 12722574570. Its totient is φ = 12722574568.

The previous prime is 12722574547. The next prime is 12722574587. The reversal of 12722574569 is 96547522721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12196330969 + 526243600 = 110437^2 + 22940^2 .

It is a cyclic number.

It is not a de Polignac number, because 12722574569 - 2¹² = 12722570473 is a prime.

It is a super-2 number, since 2×12722574569² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12722574589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6361287284 + 6361287285.

It is an arithmetic number, because the mean of its divisors is an integer number (6361287285).

Almost surely, 2^12722574569 is an apocalyptic number.

It is an amenable number.

12722574569 is a deficient number, since it is larger than the sum of its proper divisors (1).

12722574569 is an equidigital number, since it uses as much as digits as its factorization.

12722574569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2116800, while the sum is 50.

The spelling of 12722574569 in words is "twelve billion, seven hundred twenty-two million, five hundred seventy-four thousand, five hundred sixty-nine".