2178116994 has 8 divisors (see below), whose sum is σ = 4356234000. Its totient is φ = 726038996.

The previous prime is 2178116989. The next prime is 2178117017. The reversal of 2178116994 is 4996118712.

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

2178116994 is an admirable number.

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, 181509744 + ... + 181509755.

It is an arithmetic number, because the mean of its divisors is an integer number (544529250).

Almost surely, 2^2178116994 is an apocalyptic number.

2178116994 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2178116994 is a wasteful number, since it uses less digits than its factorization.

2178116994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363019504.

The product of its digits is 217728, while the sum is 48.

The square root of 2178116994 is about 46670.3009846733. The cubic root of 2178116994 is about 1296.2648195219.

The spelling of 2178116994 in words is "two billion, one hundred seventy-eight million, one hundred sixteen thousand, nine hundred ninety-four".