2778382194 has 32 divisors (see below), whose sum is σ = 6396955776. Its totient is φ = 788027520.

The previous prime is 2778382151. The next prime is 2778382219. The reversal of 2778382194 is 4912838772.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235677 + ... + 247184.

It is an arithmetic number, because the mean of its divisors is an integer number (199904868).

Almost surely, 2^2778382194 is an apocalyptic number.

2778382194 is an abundant number, since it is smaller than the sum of its proper divisors (3618573582).

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

2778382194 is a wasteful number, since it uses less digits than its factorization.

2778382194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483010.

The product of its digits is 1354752, while the sum is 51.

The square root of 2778382194 is about 52710.3613533430. The cubic root of 2778382194 is about 1405.8230583193.

The spelling of 2778382194 in words is "two billion, seven hundred seventy-eight million, three hundred eighty-two thousand, one hundred ninety-four".