9939316109 has 2 divisors, whose sum is σ = 9939316110. Its totient is φ = 9939316108.

The previous prime is 9939316099. The next prime is 9939316129. The reversal of 9939316109 is 9016139399.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8570686084 + 1368630025 = 92578^2 + 36995^2 .

It is a cyclic number.

It is not a de Polignac number, because 9939316109 - 2²⁰ = 9938267533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9939316129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4969658054 + 4969658055.

It is an arithmetic number, because the mean of its divisors is an integer number (4969658055).

Almost surely, 2^9939316109 is an apocalyptic number.

It is an amenable number.

9939316109 is a deficient number, since it is larger than the sum of its proper divisors (1).

9939316109 is an equidigital number, since it uses as much as digits as its factorization.

9939316109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 354294, while the sum is 50.

The square root of 9939316109 is about 99696.1188261609. The cubic root of 9939316109 is about 2150.0678622171.

The spelling of 9939316109 in words is "nine billion, nine hundred thirty-nine million, three hundred sixteen thousand, one hundred nine".