12963872569 has 2 divisors, whose sum is σ = 12963872570. Its totient is φ = 12963872568.

The previous prime is 12963872531. The next prime is 12963872573. The reversal of 12963872569 is 96527836921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9071610025 + 3892262544 = 95245^2 + 62388^2 .

It is a cyclic number.

It is not a de Polignac number, because 12963872569 - 2²⁷ = 12829654841 is a prime.

It is a super-2 number, since 2×12963872569² (a number of 21 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (12963875569) 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, 6481936284 + 6481936285.

It is an arithmetic number, because the mean of its divisors is an integer number (6481936285).

Almost surely, 2^12963872569 is an apocalyptic number.

It is an amenable number.

12963872569 is a deficient number, since it is larger than the sum of its proper divisors (1).

12963872569 is an equidigital number, since it uses as much as digits as its factorization.

12963872569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9797760, while the sum is 58.

The spelling of 12963872569 in words is "twelve billion, nine hundred sixty-three million, eight hundred seventy-two thousand, five hundred sixty-nine".