16838344780711 has 24 divisors (see below), whose sum is σ = 18350223725184. Its totient is φ = 15432699985920.

The previous prime is 16838344780693. The next prime is 16838344780721. The reversal of 16838344780711 is 11708744383861.

It is a happy number.

It is not a de Polignac number, because 16838344780711 - 2¹⁵ = 16838344747943 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 16838344780711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16838344780721) 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, 35767591 + ... + 36235303.

It is an arithmetic number, because the mean of its divisors is an integer number (764592655216).

Almost surely, 2^{16838344780711} is an apocalyptic number.

16838344780711 is a deficient number, since it is larger than the sum of its proper divisors (1511878944473).

16838344780711 is a wasteful number, since it uses less digits than its factorization.

16838344780711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470999 (or 470980 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 61.

The spelling of 16838344780711 in words is "sixteen trillion, eight hundred thirty-eight billion, three hundred forty-four million, seven hundred eighty thousand, seven hundred eleven".