9980422409 has 2 divisors, whose sum is σ = 9980422410. Its totient is φ = 9980422408.

The previous prime is 9980422357. The next prime is 9980422427. The reversal of 9980422409 is 9042240899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8948214025 + 1032208384 = 94595^2 + 32128^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9980422409 is a prime.

It is not a weakly prime, because it can be changed into another prime (9980422609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4990211204 + 4990211205.

It is an arithmetic number, because the mean of its divisors is an integer number (4990211205).

Almost surely, 2^9980422409 is an apocalyptic number.

It is an amenable number.

9980422409 is a deficient number, since it is larger than the sum of its proper divisors (1).

9980422409 is an equidigital number, since it uses as much as digits as its factorization.

9980422409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 9980422409 is about 99902.0640877855. The cubic root of 9980422409 is about 2153.0278168192.

The spelling of 9980422409 in words is "nine billion, nine hundred eighty million, four hundred twenty-two thousand, four hundred nine".