19408580969 has 2 divisors, whose sum is σ = 19408580970. Its totient is φ = 19408580968.

The previous prime is 19408580953. The next prime is 19408581013. The reversal of 19408580969 is 96908580491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18976440025 + 432140944 = 137755^2 + 20788^2 .

It is a cyclic number.

It is not a de Polignac number, because 19408580969 - 2⁴ = 19408580953 is a prime.

It is a super-2 number, since 2×19408580969² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (19408580869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9704290484 + 9704290485.

It is an arithmetic number, because the mean of its divisors is an integer number (9704290485).

Almost surely, 2^19408580969 is an apocalyptic number.

It is an amenable number.

19408580969 is a deficient number, since it is larger than the sum of its proper divisors (1).

19408580969 is an equidigital number, since it uses as much as digits as its factorization.

19408580969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5598720, while the sum is 59.

The spelling of 19408580969 in words is "nineteen billion, four hundred eight million, five hundred eighty thousand, nine hundred sixty-nine".