16984630409 has 2 divisors, whose sum is σ = 16984630410. Its totient is φ = 16984630408.

The previous prime is 16984630387. The next prime is 16984630417. The reversal of 16984630409 is 90403648961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9793081600 + 7191548809 = 98960^2 + 84803^2 .

It is a cyclic number.

It is not a de Polignac number, because 16984630409 - 2¹² = 16984626313 is a prime.

It is not a weakly prime, because it can be changed into another prime (16984630459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8492315204 + 8492315205.

It is an arithmetic number, because the mean of its divisors is an integer number (8492315205).

Almost surely, 2^16984630409 is an apocalyptic number.

It is an amenable number.

16984630409 is a deficient number, since it is larger than the sum of its proper divisors (1).

16984630409 is an equidigital number, since it uses as much as digits as its factorization.

16984630409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The spelling of 16984630409 in words is "sixteen billion, nine hundred eighty-four million, six hundred thirty thousand, four hundred nine".