3318849378818 has 8 divisors (see below), whose sum is σ = 4978509433212. Its totient is φ = 1659346234416.

The previous prime is 3318849378797. The next prime is 3318849378869. The reversal of 3318849378818 is 8188739488133.

It can be written as a sum of positive squares in 2 ways, for example, as 3311151597649 + 7697781169 = 1819657^2 + 87737^2 .

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

It is a super-2 number, since 2×3318849378818² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39174605 + ... + 39259232.

Almost surely, 2^{3318849378818} is an apocalyptic number.

3318849378818 is a deficient number, since it is larger than the sum of its proper divisors (1659660054394).

3318849378818 is a wasteful number, since it uses less digits than its factorization.

3318849378818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78454996.

The product of its digits is 222953472, while the sum is 71.

The spelling of 3318849378818 in words is "three trillion, three hundred eighteen billion, eight hundred forty-nine million, three hundred seventy-eight thousand, eight hundred eighteen".