16413626909 has 2 divisors, whose sum is σ = 16413626910. Its totient is φ = 16413626908.

The previous prime is 16413626861. The next prime is 16413626917. The reversal of 16413626909 is 90962631461.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12670879225 + 3742747684 = 112565^2 + 61178^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16413626909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16413626959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8206813454 + 8206813455.

It is an arithmetic number, because the mean of its divisors is an integer number (8206813455).

Almost surely, 2^16413626909 is an apocalyptic number.

It is an amenable number.

16413626909 is a deficient number, since it is larger than the sum of its proper divisors (1).

16413626909 is an equidigital number, since it uses as much as digits as its factorization.

16413626909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904, while the sum is 47.

The spelling of 16413626909 in words is "sixteen billion, four hundred thirteen million, six hundred twenty-six thousand, nine hundred nine".