3394778367018 has 16 divisors (see below), whose sum is σ = 6795354832416. Its totient is φ = 1130626439280.

The previous prime is 3394778366957. The next prime is 3394778367041. The reversal of 3394778367018 is 8107638774933.

It is a super-2 number, since 2×3394778367018² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3394778367018.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241579821 + ... + 241593872.

It is an arithmetic number, because the mean of its divisors is an integer number (424709677026).

Almost surely, 2^{3394778367018} is an apocalyptic number.

3394778367018 is an abundant number, since it is smaller than the sum of its proper divisors (3400576465398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3394778367018 is a wasteful number, since it uses less digits than its factorization.

3394778367018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483174869.

The product of its (nonzero) digits is 128024064, while the sum is 66.

The spelling of 3394778367018 in words is "three trillion, three hundred ninety-four billion, seven hundred seventy-eight million, three hundred sixty-seven thousand, eighteen".