16768135309 has 8 divisors (see below), whose sum is σ = 16803376128. Its totient is φ = 16732924560.

The previous prime is 16768135301. The next prime is 16768135331. The reversal of 16768135309 is 90353186761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16768135309 - 2³ = 16768135301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16768135301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1359679 + ... + 1371955.

It is an arithmetic number, because the mean of its divisors is an integer number (2100422016).

Almost surely, 2^16768135309 is an apocalyptic number.

It is an amenable number.

16768135309 is a deficient number, since it is larger than the sum of its proper divisors (35240819).

16768135309 is a wasteful number, since it uses less digits than its factorization.

16768135309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15035.

The product of its (nonzero) digits is 816480, while the sum is 49.

The spelling of 16768135309 in words is "sixteen billion, seven hundred sixty-eight million, one hundred thirty-five thousand, three hundred nine".