16808878792349 has 24 divisors (see below), whose sum is σ = 20230526576160. Its totient is φ = 13908668946144.

The previous prime is 16808878792339. The next prime is 16808878792367. The reversal of 16808878792349 is 94329787880861.

It is not a de Polignac number, because 16808878792349 - 2²⁰ = 16808877743773 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 (16808878792309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8424842 + ... + 10227204.

It is an arithmetic number, because the mean of its divisors is an integer number (842938607340).

Almost surely, 2^{16808878792349} is an apocalyptic number.

It is an amenable number.

16808878792349 is a deficient number, since it is larger than the sum of its proper divisors (3421647783811).

16808878792349 is a wasteful number, since it uses less digits than its factorization.

16808878792349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808969 (or 1808962 counting only the distinct ones).

The product of its (nonzero) digits is 2341011456, while the sum is 80.

The spelling of 16808878792349 in words is "sixteen trillion, eight hundred eight billion, eight hundred seventy-eight million, seven hundred ninety-two thousand, three hundred forty-nine".