3842863470217 has 4 divisors (see below), whose sum is σ = 3842870331460. Its totient is φ = 3842856608976.

The previous prime is 3842863470151. The next prime is 3842863470221. The reversal of 3842863470217 is 7120743682483.

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

It can be written as a sum of positive squares in 2 ways, for example, as 385089749136 + 3457773721081 = 620556^2 + 1859509^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3842863470217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3842863470247) 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, 2507742 + ... + 3738247.

It is an arithmetic number, because the mean of its divisors is an integer number (960717582865).

Almost surely, 2^{3842863470217} is an apocalyptic number.

It is an amenable number.

3842863470217 is a deficient number, since it is larger than the sum of its proper divisors (6861243).

3842863470217 is an equidigital number, since it uses as much as digits as its factorization.

3842863470217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6861242.

The product of its (nonzero) digits is 10838016, while the sum is 55.

The spelling of 3842863470217 in words is "three trillion, eight hundred forty-two billion, eight hundred sixty-three million, four hundred seventy thousand, two hundred seventeen".