22078078394 has 16 divisors (see below), whose sum is σ = 34984198080. Its totient is φ = 10420814880.

The previous prime is 22078078391. The next prime is 22078078417. The reversal of 22078078394 is 49387087022.

It is not an unprimeable number, because it can be changed into a prime (22078078391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1023134 + ... + 1044489.

It is an arithmetic number, because the mean of its divisors is an integer number (2186512380).

Almost surely, 2^22078078394 is an apocalyptic number.

22078078394 is a deficient number, since it is larger than the sum of its proper divisors (12906119686).

22078078394 is a wasteful number, since it uses less digits than its factorization.

22078078394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067925.

The product of its (nonzero) digits is 1354752, while the sum is 50.

The spelling of 22078078394 in words is "twenty-two billion, seventy-eight million, seventy-eight thousand, three hundred ninety-four".