16309316939 has 4 divisors (see below), whose sum is σ = 16369946640. Its totient is φ = 16248687240.

The previous prime is 16309316929. The next prime is 16309317001. The reversal of 16309316939 is 93961390361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16309316939 - 2⁴ = 16309316923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16309316929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30314447 + ... + 30314984.

It is an arithmetic number, because the mean of its divisors is an integer number (4092486660).

Almost surely, 2^16309316939 is an apocalyptic number.

16309316939 is a deficient number, since it is larger than the sum of its proper divisors (60629701).

16309316939 is an equidigital number, since it uses as much as digits as its factorization.

16309316939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60629700.

The product of its (nonzero) digits is 708588, while the sum is 50.

The spelling of 16309316939 in words is "sixteen billion, three hundred nine million, three hundred sixteen thousand, nine hundred thirty-nine".