3318849378817 has 16 divisors (see below), whose sum is σ = 3972931522560. Its totient is φ = 2710698000912.

The previous prime is 3318849378797. The next prime is 3318849378869. The reversal of 3318849378817 is 7188739488133.

It is a cyclic number.

It is not a de Polignac number, because 3318849378817 - 2³⁵ = 3284489640449 is a prime.

It is a super-2 number, since 2×3318849378817² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3118849378817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39147717 + ... + 39232402.

It is an arithmetic number, because the mean of its divisors is an integer number (248308220160).

Almost surely, 2^{3318849378817} is an apocalyptic number.

It is an amenable number.

3318849378817 is a deficient number, since it is larger than the sum of its proper divisors (654082143743).

3318849378817 is a wasteful number, since it uses less digits than its factorization.

3318849378817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78380412.

The product of its digits is 195084288, while the sum is 70.

The spelling of 3318849378817 in words is "three trillion, three hundred eighteen billion, eight hundred forty-nine million, three hundred seventy-eight thousand, eight hundred seventeen".