6416650781859 has 4 divisors (see below), whose sum is σ = 8555534375816. Its totient is φ = 4277767187904.

The previous prime is 6416650781851. The next prime is 6416650781861. The reversal of 6416650781859 is 9581870566146.

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

It is not a de Polignac number, because 6416650781859 - 2³ = 6416650781851 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 6416650781859.

It is not an unprimeable number, because it can be changed into a prime (6416650781851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1069441796974 + ... + 1069441796979.

It is an arithmetic number, because the mean of its divisors is an integer number (2138883593954).

Almost surely, 2^{6416650781859} is an apocalyptic number.

6416650781859 is a deficient number, since it is larger than the sum of its proper divisors (2138883593957).

6416650781859 is a wasteful number, since it uses less digits than its factorization.

6416650781859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138883593956.

The product of its (nonzero) digits is 87091200, while the sum is 66.

The spelling of 6416650781859 in words is "six trillion, four hundred sixteen billion, six hundred fifty million, seven hundred eighty-one thousand, eight hundred fifty-nine".