6916946909 has 2 divisors, whose sum is σ = 6916946910. Its totient is φ = 6916946908.

The previous prime is 6916946867. The next prime is 6916946917. The reversal of 6916946909 is 9096496196.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4401924409 + 2515022500 = 66347^2 + 50150^2 .

It is a cyclic number.

It is not a de Polignac number, because 6916946909 - 2¹⁶ = 6916881373 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6916946609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3458473454 + 3458473455.

It is an arithmetic number, because the mean of its divisors is an integer number (3458473455).

Almost surely, 2^6916946909 is an apocalyptic number.

It is an amenable number.

6916946909 is a deficient number, since it is larger than the sum of its proper divisors (1).

6916946909 is an equidigital number, since it uses as much as digits as its factorization.

6916946909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5668704, while the sum is 59.

The square root of 6916946909 is about 83168.1844757958. The cubic root of 6916946909 is about 1905.3355943005.

The spelling of 6916946909 in words is "six billion, nine hundred sixteen million, nine hundred forty-six thousand, nine hundred nine".