716335315909 has 2 divisors, whose sum is σ = 716335315910. Its totient is φ = 716335315908.

The previous prime is 716335315903. The next prime is 716335315921. The reversal of 716335315909 is 909513533617.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 712879639684 + 3455676225 = 844322^2 + 58785^2 .

It is a cyclic number.

It is not a de Polignac number, because 716335315909 - 2¹⁵ = 716335283141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (716335315903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358167657954 + 358167657955.

It is an arithmetic number, because the mean of its divisors is an integer number (358167657955).

Almost surely, 2^716335315909 is an apocalyptic number.

It is an amenable number.

716335315909 is a deficient number, since it is larger than the sum of its proper divisors (1).

716335315909 is an equidigital number, since it uses as much as digits as its factorization.

716335315909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2296350, while the sum is 52.

The spelling of 716335315909 in words is "seven hundred sixteen billion, three hundred thirty-five million, three hundred fifteen thousand, nine hundred nine".