3394778366994 has 16 divisors (see below), whose sum is σ = 7759493410368. Its totient is φ = 969936676272.

The previous prime is 3394778366957. The next prime is 3394778367041. The reversal of 3394778366994 is 4996638774933.

It is a happy number.

It is a super-2 number, since 2×3394778366994² (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 7 ways as a sum of consecutive naturals, for example, 40414028137 + ... + 40414028220.

It is an arithmetic number, because the mean of its divisors is an integer number (484968338148).

Almost surely, 2^{3394778366994} is an apocalyptic number.

3394778366994 is an abundant number, since it is smaller than the sum of its proper divisors (4364715043374).

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

3394778366994 is a wasteful number, since it uses less digits than its factorization.

3394778366994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80828056369.

The product of its digits is 4444263936, while the sum is 78.

The spelling of 3394778366994 in words is "three trillion, three hundred ninety-four billion, seven hundred seventy-eight million, three hundred sixty-six thousand, nine hundred ninety-four".