4208159819818 has 8 divisors (see below), whose sum is σ = 6318495669060. Its totient is φ = 2101994596800.

The previous prime is 4208159819789. The next prime is 4208159819819. The reversal of 4208159819818 is 8189189518024.

It can be written as a sum of positive squares in 2 ways, for example, as 4124420771689 + 83739048129 = 2030867^2 + 289377^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 4208159819818.

It is not an unprimeable number, because it can be changed into a prime (4208159819819) 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, 1042654033 + ... + 1042658068.

Almost surely, 2^{4208159819818} is an apocalyptic number.

4208159819818 is a deficient number, since it is larger than the sum of its proper divisors (2110335849242).

4208159819818 is a wasteful number, since it uses less digits than its factorization.

4208159819818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2085313112.

The product of its (nonzero) digits is 13271040, while the sum is 64.

The spelling of 4208159819818 in words is "four trillion, two hundred eight billion, one hundred fifty-nine million, eight hundred nineteen thousand, eight hundred eighteen".