16844771096387 has 4 divisors (see below), whose sum is σ = 18140522719200. Its totient is φ = 15549019473576.

The previous prime is 16844771096383. The next prime is 16844771096407. The reversal of 16844771096387 is 78369017744861.

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 16844771096387 - 2² = 16844771096383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16844771096387.

It is not an unprimeable number, because it can be changed into a prime (16844771096383) 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, 647875811387 + ... + 647875811412.

It is an arithmetic number, because the mean of its divisors is an integer number (4535130679800).

Almost surely, 2^{16844771096387} is an apocalyptic number.

16844771096387 is a deficient number, since it is larger than the sum of its proper divisors (1295751622813).

16844771096387 is a wasteful number, since it uses less digits than its factorization.

16844771096387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295751622812.

The product of its (nonzero) digits is 341397504, while the sum is 71.

The spelling of 16844771096387 in words is "sixteen trillion, eight hundred forty-four billion, seven hundred seventy-one million, ninety-six thousand, three hundred eighty-seven".